Muddy rivers and streams are signs of erosion,
A cell has two pairs of submetacentric chromosomes, which we will call chromosomes Ia, Ib, IIa, and IIb (chromosomes Ia and Ib are homologs, and chromosomes IIa and IIb are homologs). Allele M is located on the long arm of chromosome Ia, and allele m is located at the same position on chromosome Ib. Allele P is located on the short arm of chromosome Ia, and allele p is located at the same position on chromosome Ib. Allele R is located on chromosome IIa and allele r is located at the same position on chromosome Ib. Allele G is located on the long arm (q arm) of chromosome Ia, and allele g is located at the same position on chromosome Ib. Allele N is located on the q arm of chromosome IIa and allele n is located at the same position of chromosome IIb.
Required:
a. Draw these chromosomes, identifying genes R, r, G, g, N, and n as they might appear in metaphase I of meiosis. Assume there is no crossing over.
b. Taking independent assortment and the subsequent random separation of chromosomes in anaphase I, draw the chromosomes, with genes identified, present in all possible gametes that could result once this cell completes meiosis. As above, assume there is no crossing over. Explain in your own words what is meant by independent assortment.
Answer:
Note: You will find the chromosomes and the gametes in the attached files
Chromosomes:
IA ----------G-----о---------IB -----------g-----о----------IIA --------N--------------о------R----IIB ---------n--------------о-------r----Gametes:
Gamete 1: GNR Gamete 2: Gnr Gamete 3: gNRGamete 4: gnrIndependent assortment occurs when the alleles of two or more different genes distribute in the gametes independently from each other.
Explanation:
Available data:
two pairs of submetacentric chromosomes
IA -------------------о-----------
IB -------------------о-----------
IIA ----------- ------------о------------
IIB ------------------------о------------
chromosomes Ia and Ib are homologs
IA -------------------о-----------
IB -------------------о-----------
chromosomes IIa and IIb are homologs
IIA -----------------------о------------
IIB ------------------------о------------
Allele M is located on the long arm of chromosome Ia, and allele m is located at the same position on chromosome Ib
IA -------M----------о-----------
IB -------m----------о-----------
Allele P is located on the short arm of chromosome Ia, and allele p is located at the same position on chromosome Ib.
IA -------M----------о------P---
IB -------m----------о------p----
Allele R is located on chromosome IIa and allele r is located at the same position on chromosome IIb.
IIA ------------------------о------R----
IIB ------------------------о-------r----
Allele G is located on the long arm (q arm) of chromosome Ia, and allele g is located at the same position on chromosome Ib.
IA -------M---G-----о------P---
IB -------m----g-----о------p----
Allele N is located on the q arm of chromosome IIa and allele n is located at the same position of chromosome IIb.
IIA --------N--------------о------R----
IIB ---------n--------------о-------r----
A). Draw these chromosomes, identifying genes R, r, G, g, N, and n as they might appear in metaphase I of meiosis. Assume there is no crossing over.
IA ----------G-----о---------
IB -----------g-----о----------
IIA --------N--------------о------R----
IIB ---------n--------------о-------r----
During metaphase I, homologous pairs together migrate to the equatorial plane, where they randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. This random order in the equatorial plane is what introduces variation into the gametes. It is almost impossible that two gametes resulting from meiosis will get the same genetic charge.
B). Taking independent assortment and the subsequent random separation of chromosomes in anaphase I, draw the chromosomes, with genes identified, present in all possible gametes that could result once this cell completes meiosis. As above, assume there is no crossing over. Explain in your own words what is meant by independent assortment.
Independent assortment occurs when the alleles of two or more different genes distribute in the gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. An organism gets only one of the members of the chromatids pair of each parent.
During gamete formation in meiosis, the pairs of homologous chromosomes separate after crossing over, and then chromatids sisters also separate, resulting in the formation of four gametes. Each gamete has different information from the combination of homologous chromosomes belonging to the father and to the mother.
There are four possible combinations, considering that there is no crossing over.
Gamete 1: GNRGamete 2: GnrGamete 3: gNRGamete 4: gnr
The thick forest of this biome tends to be well adapted to short growing seasons.
Responses
Temperate grassland
Temperate grassland
Taiga
Taiga
Tropical rainforest
Tropical rainforest
Tundra
The thick forest of this biome tends to be well adapted to short growing seasons, Taiga. 2nd option.
What is Taiga?The taiga is a cold-weather subarctic forest. The subarctic region of the Northern Hemisphere is located just south of the Arctic Circle. It is located between the tundra and temperate forests to the north and south, respectively and can be found in Alaska, Canada, Scandinavia, and Siberia.
Taiga, also known as boreal forest, is a biome characterized by coniferous forests composed of spruces, larches, and pines. It is well adapted to short growing seasons because of the cold weather of the biome.
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The theory of endosymbiosis proposes that eukaryotes descended from a primitive combination of both archaea and bacteria. What evidence supports this theory?
HELP ME PLS
Think about the role of both biotic and abiotic factors within an ecosystem.
Describe a scenario in which one abiotic or biotic factor is added or removed from an ecosystem.
Explain the possible side effects on that ecosystem.
Be sure to –Address the prompt, provide support, and conclude your thoughts.
Answer:
A fish is a biotic factor and water that the fish lives in is a biotic factor if the water is removed all the fish will die, anything that relies on the fish to survive will decrease in population.
Explanation:
The graph below shows the relative rates of enzyme
activity at different temperatures during a chemical
reaction.
Relative rate of
enzyme action
0 10
20 30 40 50 60
Temperature (°C)
According to the graph, what condition is best for enzyme activity?
OA. A temperature of about 25°C
B. A temperature above 30°C
OC. A temperature below 20°C
D. A temperature of about 0°C
The graph shows that the condition that is best for enzyme activity is A. A temperature of about 25 ° C
What temperature is best for enzymes ?This is because the graph shows that the rate of enzyme activity increases as the temperature increases from 0°C to 25°C. However, the rate of enzyme activity decreases as the temperature increases above 25°C. This is because the enzyme denatures at high temperatures, which means that it loses its shape and function.
The optimal temperature for enzyme activity is different for different enzymes. The optimal temperature for the enzyme in the graph is 25°C.
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The correct answer is A.
From the given graph, the condition that is best for enzyme activity can be inferred as the temperature of about 25°C.
Enzymes are organic molecules that act as catalysts and aid the biochemical reactions that occur in living organisms. Enzymes usually function under specific optimal conditions, including temperature, pH, and salt concentration. Changes in these conditions may affect the enzyme's performance and ultimately cause a decrease or cessation of the reaction's activity.Temperature, in particular, has a significant effect on enzyme activity. The reaction rate increases as the temperature rises until it reaches the optimum temperature, where the enzyme activity is at its peak. As a result, the optimum temperature promotes the highest possible reaction rate, while high or low temperatures may reduce the enzyme's efficacy and cause a decrease in the reaction rate.According to the graph, the optimum temperature for the enzyme activity is approximately 25°C. At 25°C, the relative rate of enzyme activity is maximum, indicating that the enzyme performs optimally at this temperature. In contrast, a temperature of about 0°C would be too low, causing the enzyme to freeze and become inactive. A temperature above 30°C would still be high, causing the enzyme to denature and lose its activity. Lastly, a temperature below 20°C would be too low, causing the enzyme to become inactive due to a lack of energy. Therefore, the optimal temperature for enzyme activity is 25°C.For such more questions on enzyme
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A testable hypothesis could be formed front which questions
A testable hypothesis is one that can be tested through empirical research, meaning that it is possible to gather evidence to support or refute it.
A hypothesis is a possible explanation that is proposed for a phenomenon that occurs in nature. In the scientific method, hypotheses are tested by collecting and analyzing data to either support or reject them.
A testable hypothesis could be formed from a question by using the following steps:
Identify the phenomenon that you want to study: Start by identifying the phenomenon that you want to study. This could be a relationship between two variables or a question about how something works. Develop a research question: Based on the phenomenon you want to study, develop a research question that can be answered through empirical research. This question should be specific and should be able to be tested using scientific methods. Formulate a hypothesis: Using your research question, formulate a hypothesis that can be tested through empirical research. This hypothesis should be a statement that proposes a possible explanation for the phenomenon you are studying. It should be clear, concise, and testable.
Test the hypothesis: Once you have developed a testable hypothesis, you can design and conduct experiments to gather data that will either support or refute the hypothesis. If the hypothesis is supported by the data, you can consider it to be a valid explanation for the phenomenon you are studying. If the data refute the hypothesis, you may need to revise it or develop a new hypothesis.
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Are Analogous structures an indication that two organisms might have a recent common ancestor
Answer:
not all structures that look alike are due to common ancestry. Analogous structures evolved independently in different organisms because the organisms lived in similar environments or experienced similar selective pressure.
Explanation:i know
How do meiosis I and II contribute to genetic variation?
Meiosis I and II contributes to genetic variation by:
Giving each daughter cell one chromosome from the chromatids which remains after Meiosis IMeiosis I and II are both processes of cell differentiation where two cells divide to produce four daughter cells which contain genetic information.
Meiosis I starts with one diploid parent cell and after its division, it gets two haploid daughter cells which have the same amount of chromosome.
Meiosis II makes use of the chromatids that are left after the cell division in Meiosis I as the daughter cells get DNA.
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For each item below, specify the independent and dependent variables, as well as constants.
1. The time it takes to run a mile depends on the person's running speed.
2. A study was done to find if different tire treads affect the braking distance of a car.
3. The height of bean plants depends on the amount of water they receive.
4. The higher the temperature of the air in the oven, the faster a cake will bake.
5. Lemon trees receiving the most water produced the most lemons.
6. An investigation found that more bushels of potatoes were produced when the soil was
fertilized more.
7. Students measured the temperature of the water at different depths in Lake Skywalker and
found that the temperature varied.
8. The amount of pollution produced by cars was measured for cars using gasoline containing
different amounts of lead.
9. Four groups of rats are first massed and then fed identical diets except for the amount of
vitamin A they receive. Each group gets a different amount. After 3 weeks on the diet, the rats
masses are measured again to see if there has been a decrease.
For each of the given items, the independent and dependent variables, as well as constants are those variables that produce a change in another, the variable that depends on another to change, and that which does not change respectively.
What are dependent and independent variables?In a scientific experiment, an independent variable is a variable that is altered or controlled to see how it affects the dependent variable. In a scientific experiment, the variable under test and being measured is known as the dependent variable.
A constant in an experiment does not vary but remains unchanged at the end of the experiment.
Considering the given items, the independent and dependent variables, as well as the constants are as follows:
Independent variable: running speed; Dependent variable: the time it takes to run a mile; Constant: distance of the runIndependent variable: tire treads; Dependent variable: braking distance of a car; Constant: speed of the carIndependent variable: the amount of water; Dependent variable: height of bean plants; Constant: type of bean plantIndependent variable: temperature of the air in the oven; Dependent variable: the time it takes for a cake to bake; Constant: type of cakeIndependent variable: the amount of water; Dependent variable: the number of lemons produced; Constant: type of lemon treeIndependent variable: the amount of fertilizer; Dependent variable: number of bushels of potatoes produced; Constant: soil typeIndependent variable: depth of the water; Dependent variable: temperature of the water; Constant: time of dayIndependent variable: the amount of lead in gasoline; Dependent variable: the amount of pollution produced by cars; Constant: type of carIndependent variable: the amount of vitamin A; Dependent variable: change in rat mass; Constant: type of rat, diet composition, feeding schedule, etc.Learn more about dependent and independent variables at: https://brainly.com/question/25223322
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Muscle contractions occur when myofibrils
in the muscle shorten and lengthen to make
the muscle contract and extend. Which
types of muscles use these muscle
contractions?
All muscle types
Only smooth muscles.
Is it a scientific theory or a scientific law that the characteristics of living things change over time?
Answer:
Scientific Theory
Explanation:
The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.
In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.
Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.
Hope this helps!
Do you know the different stages through which raw agricultural materials go before they reach your table? Trace the journey of a burger bun from grains of wheat at a farm to your table. Perform online or offline research and write a report on the processes involved in manufacturing burger buns.
PLATO ANSWER
The basic raw material for making a burger bun is flour. The major steps required for turning wheat into a burger bun are as follows:
Cultivation of wheat
Harvesting of wheat
Grinding wheat to flour
Baking flour to make buns
Let’s trace the journey.
Before a burger bun reaches the table, it goes through several processes. The farmer select wheat heads when they turn golden yellow and the kernels are hard and dry. A combine harvests the wheat and packs it in sacks. The farmer then stores the wheat in a granary and eventually sells it to a wholesale trading company. The wholesaler transports the wheat to a warehouse and then sells it to a flour manufacturer. The manufacturer`s first step is to cleanse the wheat of impurities, such as weeds, seeds, dirt, small stones, and metal pieces, by using a series of giant disks and magnets. The kernels then go through a giant bath, which separates any other heavy particles that remain. It also helps cleanse the grains. Lighter materials such as husks or flakes of stalk will wash away.
After the cleaning process, the wheat goes through rollers that crack the kernel, and then huge machines use various screens to filter the wheat pieces. In the production of white flour, air currents blow the bran away from the rest of the wheat, and then the remaining pieces of wheat go through a variety of rollers that grind it into finer powder. After each grinding, the machines sift the wheat through screens—and there are more than 20 such screens. Each screen filters finer and finer particles. Finally, the manufacturer fortifies the wheat by adding special ingredients such as vitamins and iron. The manufacturer then packs, labels, and stores the ready-to-bake flour for transportation and supply.
The packaged wheat flour reaches the store racks through a variety of distributors and suppliers and by various means of transport. Once on the shelf, it is a matter of time before a consumer purchases it. Some of the packaged products may reach industrial baking organizations.
After bringing home some flour, I unpack it and then mix it with salt, water, yeast, and a few other ingredients. Before rolling it, I have to give the dough some time to rise. The yeast in the dough makes it rise through the action of tiny bubbles of carbon dioxide. I then form the dough into the correct shapes and put in the oven to bake. In the baking process, the gas bubbles exit the dough, leaving the bread soft and fluffy. After baking and cooling, the buns are ready to become parts of mouth-watering burgers.
PLEASE HELPPP MEEEEEEEEEEEEEE!!!! What is a consumer? (2 points) a A consumer is a nonliving thing that produces food for other living things. b A consumer is a nonliving thing that transfers energy to other living things. c A consumer is a living thing that makes its own food and also eats other living things. d A consumer is a living thing that is unable to make its own food and must eat other living things.
Answer:
(d)
Explanation:
a cunsumer is an living thing that is unable to make its own food and must eat other living things.
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _______ plants.
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _______ ratio.
Respond to the following based on your reading.
Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic.
Reginald Punnett sought to apply the insights obtained by Mendel to explain the laws of inheritance in a structured fashion. What's a Punnett square and how is it used?
You're conducting a science experiment crossing two different purebred mouse strains, which each contain a different variation of the same gene, for two generations. What do you expect to see as the phenotypes of the first generation? The second generation?
How closely do Mendel's insights into dominant and recessive traits match up with the ratios that Punnett calculated in his Punnett squares?
Assuming complete dominance for all the genes, a) the offspring will all be Tall and heterozygous plants. b) 3:1 ratio. c) Punnett squares are used to combinate the parental gametes and make predictions about the possible genotypes and phenotypes among the progeny. d) First generation 100% heterozygous expressing the dominant phenotype. Second generation: 25% homozygous dominant + 50% heterozygous + 25% homozgous recessive. 75% expressing the dominant phenotype + 25% expressing the recessive phenotype. e) Mendel's insight and Punnett squares match perfectly with the expected ratios.
What are complete dominance and Punnett squares?
Complete dominance is an inheritance pattern that becomes evident in heterozygous individuals. The presence of at least one dominant allele is enougth to hide the expression of the recessive allele. In these cases, the individual expresses the dominant phenotype.
The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _TALL_ plants.All these plants will be heterozygous and express the dominant phenotype (Tall).
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _3:1_ ratio.1/4 = 25% of the progeny are expected to be homozygous dominant
2/4 = 50% of the progeny are expected to be heterozygous
1/4 = 25% of the progeny is expected to be homozygous recessive
25% homozygous dominant + 50% heterozygous = 75% dominant phenotype
Punnett squares discriminate parental gametes and combinates them when the columns and the rows meet. The cells where columns and rows meet (gamete combinations) gives the progeny genotypes. Cross: two different purebred mouse strainsParentals) PP x pp
Gametes) P P p p
Punnett square) P P
p Pp Pp
p Pp Pp
F1) 100% heterozygous expressing the dominant phenotype
Parentals) Pp x Pp
Gametes) P p P p
Punnett square) P p
P PP Pp
p Pp pp
F2) Expected Genotypes
1/4 = 25% PP 2/4 = 50% Pp1/4 = 25% pp
Expected Phenotypes
3/4 = 75% Dominant phenotype (PP + Pp)1/4 = 25% Recessive phenotype (pp)Mendel's insights into dominant and recessive traits match up perfectly with the ratios that calculated using a Punnett square.
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YA'LL ARE SMART ! PLEASE HELP !
Answer:
ionic dont belive me here u go for some help to thangs
Explanation:
i hoped i help all i can
Use the drop-down menus to identify each type of galaxy pictured.
Answer:
A- Elliptical
B-Irregular
C- Spiral
What type of rock is Sevehah Cliff made of?
Answer:
Paleozoic metasedimentary rocks
The Sevehah Cliffs are composed of early Paleozoic metasedimentary rocks of the Mt Morrison roof pendant. Prominant formations include the light-colored calcareous quartzite of the Mount Morrison formation and the darker reddish brown rocks of the Squares Tunnel formation
Explanation:
The rock Sevehah Cliff is made up of Paleozoic meta sedimentary rocks and these are the type of rock which has specific character as well as pattern.
What is Sevehah Cliff ?The Sevehah Cliffs are composed of early Paleozoic metasedimentary rocks of the Mt Morrison roof pendant. Prominant formations include the light-colored calcareous quartzite of the Mount Morrison formation and the darker reddish brown rocks of the Squares Tunnel formation and The rock Sevehah Cliff is made up of Paleozoic meta sedimentary rocks and these are the type of rock which has specific character as well as pattern.
Rock has been defined as when the mineral grains has been combined in the solid form and later grow or to take shape of the cemented form has been known as the rocks. The rocks are made up of more than one mineral including the size of some rocks are small or big it has been depends upon their constituents. Rocks has been divided on the basis of their formation by the Geologists.There are mainly three kinds of rock and these are metamorphic, igneous, and sedimentary. The most durable substance is stone.
Therefore, The rock Sevehah Cliff is made up of Paleozoic meta sedimentary rocks and these are the type of rock which has specific character as well as pattern.
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Just off the Oregon coast, a fishing boat filled with eager tourists pulled out of the harbor on a beautiful, sunny, cool day. The tide was unusually low as the boat was crossing the bar. This was the third boat to go out that morning, and the first two encountered no problems. This boat, however, was hit broadside by a wave and capsized. About half of the passengers
were wearing life jackets. Some of the passengers were trapped below deck in the overturned boat and attempted to break through the glass barriers to swim to the surface. Hypothermia set in within minutes, and 10 of the 17 passengers drowned. Two persons were not recovered.
Case Study Questions
1. Describe the physiological effects of hypothermia.
2. What preventative measures could the tourists have taken?
3. What preventative measures could the captain of the boat have taken?
Answer:
Explanation:
well when you get hypothermia you are freezing your blood so it puts you in a state of shock.
they should have been wearing warmer clothes and life jackets
they should have gone around the bar
write ma best slogan on millets
"Nourish Your Body, Embrace Millets: Nature's Power Grains for Health and Sustainability!". The slogan concludes with "for Health and Sustainability," emphasizing the dual benefits of millets for personal health and the planet
"Nourish Your Body, Embrace Millets: Nature's Power Grains for Health and Sustainability!" This slogan highlights the key benefits and values associated with millets as a nutritious and sustainable food choice.
The phrase "Nourish Your Body" emphasizes the health aspect, emphasizing that millets are rich in essential nutrients, fiber, and antioxidants, contributing to overall well-being and vitality.
"Embrace Millets" encourages individuals to embrace these ancient grains as a versatile and wholesome part of their diet, celebrating their unique flavors and culinary possibilities.
The addition of "Nature's Power Grains" highlights the natural origin of millets and their inherent power in providing sustainable nutrition while being environmentally friendly.
The slogan concludes with "for Health and Sustainability," emphasizing the dual benefits of millets for personal health and the planet, showcasing millets as a smart and responsible choice for individuals who value their well-being and are committed to a sustainable lifestyle.
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HELP ME OUT PLEASE
Create Cell Analogies, for example, compare a cell to a castle
The cell wall is like the walls because it protects the castle
The cell membrane is like the drawbridge because it lets certain things in and out
The vacuoles are like the storage rooms because they both store things
Your turn! Pick an item like an airplane, basketball gym/baseball field, house, or school to complete your own analogies below. You can pick different organelles as well. See examples above.
5. The________is like________because________
6. The_______is like________because______
7. The______is like______because______
Explanation:
cl dip goop drop RIP ro ep DUP doop fip
The products of photosynthesis serve as substrates for aerobic respiration, while those of aerobic respiration are utilised in photosynthesis. Considering the substrates and products of these two biological processes, discuss how they feed into one another.
Photosynthesis and aerobic respiration are two essential biological processes that are intimately connected, as they provide the basis for energy flow in most living organisms. Photosynthesis is the process by which plants and some other organisms convert light energy into chemical energy in the form of organic molecules, while aerobic respiration is the process by which cells break down organic molecules to release energy in the form of ATP (adenosine triphosphate).
The products of photosynthesis, which are organic molecules such as glucose and other sugars, serve as substrates for aerobic respiration. During aerobic respiration, these organic molecules are broken down by a series of enzymatic reactions, releasing energy that is used to generate ATP. This energy is used by the cell to carry out various metabolic processes and perform work.
On the other hand, the products of aerobic respiration, which are carbon dioxide (CO2) and water (H2O), are utilized in photosynthesis. During photosynthesis, plants and other organisms take in CO2 from the atmosphere and use it, along with water and light energy, to produce organic molecules such as glucose. This process is facilitated by a group of pigments called chlorophyll, which are located in the chloroplasts of plant cells.
Therefore, the substrates and products of photosynthesis and aerobic respiration feed into one another, creating a continuous cycle of energy flow. The organic molecules produced during photosynthesis provide the energy necessary for cells to carry out aerobic respiration, while the products of aerobic respiration are used in photosynthesis to produce more organic molecules. This cycle helps to ensure that the energy needs of living organisms are continuously met and that the environment remains in balance.
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Study the cladogram.
Which two organisms are the most closely related?
lamprey and gorilla
salamander and lizard
tiger and shark
lizard and lamprey
Answer:
salamander and lizard took the quiz
Explanation:
stop simping
Answer:
the answer ur looking for is B: Salamander and lizard!!! hope this helps!!! may i pls have brainliest?
Explanation:
have a wonderful day!!!!
What is the meaning of reality???
Answer:
life is nothing
Explanation:
i want to die
Answer:
reality means real real things or the real nature of things rather than imagined, invented,
How is physical weathering different from chemical weathering?
A.
Physical weathering is always faster than chemical weathering.
B.
In chemical weathering, the composition of the weathered substance is changed.
C.
In physical weathering, the composition of the weather substance is changed.
D.
Chemical weathering is always faster than physical weathering.
Answer:B. In chemical weathering, the composition of the weathered substance is changed.
Explanation: Chemical weathering is the act of changing its form, such as color. Physical weathering remains in its shape, but can change due to breaking into smaller sediments.
Which statement is a true statement?
A. Our continents and oceans are no longer moving due to tectonic plates moving.
B. It took millions of years for our continents and oceans to be in their current locations.
C. Our continents and oceans moved because of earthquakes.
D. Our continents and oceans are in the same locations as they always were.
Answer:
B,
The movement of the continents and oceans is due to the movement of tectonic plates, which are large sections of the Earth's lithosphere that move and interact with one another. This movement, known as plate tectonics, is driven by convection currents in the Earth's mantle.
Over millions of years, the plates have moved and collided, causing continents to drift apart, collide and form new mountain ranges, and ocean basins to open and close. This movement has also caused earthquakes and volcanic activity.
Therefore, statement A and C are incorrect. Statement D is also incorrect because the locations of the continents and oceans have changed over time due to plate tectonics.
Answer:
b,2
Explanation:
just take it it's the answer just take it
how much is 14 pennies?
Answer:
14 cent
Hope this helps :)
Answer:
14 cents
Explanation:
$0.14
what is the difference between cork formation and gum formation in the plants as an immune mechanism
Answer:
Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.
Explanation:
Why there were no clear zones for using LB media with 1% olive oil for screening lipilytic bacteria
The reason for the clear zone may be that there is Insufficient lipolytic activity.
Why the clear zone?The absence of clear zones when using LB media with 1% olive oil for screening lipolytic bacteria could be due to Insufficient lipolytic activity.
Enzymes called lipases, which are produced by lipolytic bacteria, break down fats and oils. It's possible that the bacteria utilized in the experiment won't create lipases or have poor lipolytic activity, which would prevent them from efficiently hydrolyzing the olive oil in the media. There wouldn't be any observable clearing or lipid hydrolysis zones as a result.
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What is the energy from the Sun used SPECIFICALLY for in Photosynthesis?
A cell can form beads on a string chromatin, but not solenoid fibers. Which molecule has likely been removed or mutated in this cell?
a. Η1
b. non-histone proteins
c. H2A
d. topoisomerase
The molecule which has likely been removed or mutated from a cell that can form beads on a string chromatin, but not solenoid fibers is: A. Η1
A cell can be defined as the fundamental functional, structural and smallest unit of life for all living organisms.
Genome editing refers to a high-tech process through which scientists remove (delete), replace or insert a deoxyribonucleic acid (DNA) sequence into the cells of a living organism such as an animal, bacterium, plant, etc., so as to improve on its physical and chemical conditions or correct a genetic disorder.
Chromatin can be defined as a complex form of deoxyribonucleic acid (DNA) and protein found in the cells of an eukaryotic organism.
In the classic model of chromatin, the beads simply refer to the nucleosomes while the string is simply the linker deoxyribonucleic acid (DNA).
Basically, the deoxyribonucleic acid (DNA) is wrapped around histone proteins to form nucleosomes and the beads on a string structure (euchromatin).
Furthermore, there exists a linker histone H1 in addition to core histones that reaches the entry or exit of the deoxyribonucleic acid (DNA) strand on the nucleosome.
In conclusion, a cell cannot form beads on solenoid fibers but it can form beads on a string chromatin because the H1 molecule has likely been removed or mutated in the cell.
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