Answer:
Mutations can occur during DNA replication if errors are made and not corrected in time. ... However, mutation can also disrupt normal gene activity and cause diseases, like cancer. Cancer is the most common human genetic disease; it is caused by mutations occurring in a number of growth-controlling genes.
Answer:
The amino acid sequence will be changed and a different protein will be formed.
Explanation:
I just got the answer wrong but it showed me the right answer now.
Which of the following best describes a population?
A. members of the same species living in the same
place at the same time
B. all the red birds in an area
C. all types of organisms living in the same place
D. all members of the same species
The following best describes a population - A. members of the same species living in the same place at the same time.
A population is a group of individual organisms of the same species in a given area. A population is defined as a group of individuals of the same species living and interbreeding within a given area.
Members of a population that depend on the same resources such as food or habitat are subject to similar environmental conditions and others.The population is the number of individual species of people or animals in a particular place at a particular time.An example of a population is over eight million people living in New York City.Thus, the following best describes a population - A. members of the same species living in the same place at the same time.
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What is circulatory system? Name its main organs.
Answer:
the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries.
Explanation:
Please help me with this.
NO SCAM LINKS PLEASE
Answer:
populations
Explanation:
Consider this claim: Changes in environmental conditions always result in new ecosystems and loss of biodiversity characterized by an increase in the number of some species, the evolution of new species, and the extinction of some species.
Use what you have learned from the lesson, as well as reliable and reputable resources, to evaluate this claim. Use at least three examples from the lesson and other sources to support the valid ideas in the claim and refute the invalid ones. Add a list of your resources at the end of your response. Then, draw a conclusion about the stability of ecosystems, how and what can affect the stability of ecosystems, and how changes in the environment may affect the types and number of living things in an ecosystem.
The stability of ecosystems are substance or compound that negatively affects the ecosystem, capable of causing changes in the structure and functioning of communities.
What are the stability of ecosystems?Ecological stability is characterized by the persistence of an ecosystem in keeping close to a state of equilibrium. Stability involves two concepts needed to delineate a community's response to disturbances: resistance (ecology) and resilience (ecology).
It constitutes the process of spontaneous maintenance of the cycles of environmental relationships maintained between factors in permanent interaction, forming stabilized ecosystems and, therefore, capable of co-evolution and their own succession.
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Answer:
The stability of ecosystems are substance or compound that negatively affects the ecosystem, capable of causing changes in the structure and functioning of communities.
Explanation:
Copied and pasted from dude above.
You have touched a hot stove. Your nervous system is sensing this heat. Which root of the spinal cord is receiving this information
Sensory neuron
Hope this helps :))
The sensory neuron is the root of the spinal cord is receiving this information.
When 'You have touched a hot stove. Your nervous system is sensing this heat' then a reflex action is occur.
What is reflex action?Reflex action is the actions which are carried out without conscious thought by the brain.The reflex action occur very quickly and automatically.In reflex action stimulus is carried by sensory neuron to the spinal cord.Example of reflex action is removal of hand when it touches any hot object.Therefore , the feeling of heat is carried out to the spinal cord by the sensory neuron.
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which statement is not true about bacteriophage t4 and its replication? select one: a. it has a linear genome. b. its genome circularizes within the host cell. c. it uses rolling-circle replication. d. it forms long, linear concatemers. e. it precisely packages identical full-length genomes.
The statement "it uses rolling-circle replication" is not true about bacteriophage T4 and its replication.option (C)
Bacteriophage T4 has a linear genome and forms long, linear concatemers during its replication cycle. However, it does not use rolling-circle replication, which is a mechanism commonly used by some circular DNA viruses and plasmids. Instead, T4 uses a mechanism called "concatemer resolution," which involves the resolution of long, linear concatemers into individual, unit-length genomes.
The precise packaging of identical full-length genomes is a critical step in the T4 replication cycle and is achieved through a complex interplay between viral DNA packaging motors and capsid proteins.
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Use the lists below to answer the question.
Cell Structures Observed in Two Organisms
Cell Structures in Organism 1
cell wall
endoplasmic
reticulum
Golgi body
chloroplasts
.
mitochondria
nucleus
ribosomes
vacuole
Cell Structures in Organism 2
cell membrane
endoplasmic
reticulum
Golgi body
mitochondria
nucleus
ribosomes
A student made lists of structures observed in cells from two different organisms. Which
statement describes the most likely difference in the way that organism 1 and organism 2
obtain energy?
Plant and animal cells differe in some of their structures, like the cell wall, chloroplasts, and a big vacuole present in the plant cell but not the animal cell. D) Only organism 1 uses solar energy to make energy-rich compounds.
What are the differences between a plant and an animal cell?
Both the animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.
However, they have some differences:
Cell wall: A rigid structure that provides support and protection.
• Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.
• Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.
Chloroplast: these are organelles that accumulate chlorophyll.
• Animal cells do not have chloroplasts because they do not photosynthesize.
• Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.
Vacuoles:
• Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances.
• Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.
Other differences are:
The animal cell has centrioles, while the vegetable cell does not.
Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.
Option D is correct. Only organism 1 uses solar energy to make energy-rich compounds.
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in your botany study group, you are reviewing the anatomy of fruits and vegetables. one of your classmates states that a melon is a fruit because it has a sweet taste. how should you respond?
Botany, also called factory wisdom, is the study of the factory world and is a branch of biology. I'll answer as agreed, because melon is a fruit because it's sweet.
Botany is the scientific study of shops how shops serve, what they look like, how they're related, where they grow, how humans use shops, and how shops evolved.
The lores of husbandry, horticulture and forestry arose from the foundations and discoveries of botany. Botanists interested in ecology study the relations of shops with other organisms and the terrain.
Other botanists in the field are probing new species or conducting trials to find out how shops grow under different conditions. Some botanists study the structure of shops.
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how could the botanist best determine whether the genotype of the green-pod plant is homozygous or heterozygous? view available hint(s)for part a how could the botanist best determine whether the genotype of the green-pod plant is homozygous or heterozygous? cross the green-pod plant with a yellow-pod plant. cross the green-pod plant with another green-pod plant. self-pollinate the green-pod plant.
The botanist can best determine whether the genotype of the green-pod plant is homozygous or heterozygous by crossing the green-pod plant with a yellow-pod plant.
An organism's complete set of genetic material is known as its genotype. The alleles or variants that a person carries in a particular gene or genetic location are also referred to as their "genotype."
It is known that the yellow-pod plant phenotype is homozygous recessive. For this situation, we would utilize a test cross to decide if there are any latent alleles in the unexplored world. Each offspring will have an allele for the recessive characteristic from the recessive homozygote (yellow-pod plant); the second allele (from the unknown genotype, green-pod plant) will determine the offspring's phenotype.
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A 100x lens is also known as what?
Answer:Most compound microscopes come with interchangeable lenses known as objective lenses. Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power, and (typically) oil immersion objectives, respectively.
Explanation:Hope this helped u also may i plz have brainlist only if u wanna give me brainlist though! Have an great day kind sir or ma'am.
if you consume one molecule of pyruvate , how many ATP molecules you are going to produce ?
1 NADH -> 3 ATP
1 FADH2 -> 2 ATP
A single molecule of pyruvate will generate 15 ATP molecules.
Pyruvate is an important chemical constituent according to biochemical science. It is the molecule that is produced from glycolysis, a process by which energy is derived from glucose. The carboxylate group of pyruvate is removed as carbon dioxide. The synthesized acetyl group is stimulated through its association with Coenzyme-A, thus, producing Acetyl Coenzyme-A.
The TCA cycle generates 15 ATP molecules through oxidation of Acetyl Co-A. Through oxidative decarboxylation as well as Krebs cycle, a single molecule of pyruvate (containing 3 Carbon atoms) gives rise to 4 molecules of NADH, a single molecule of FADH2 as well as one molecule of ATP.
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You have touched a hot stove. Your nervous system is sensing this heat. Which root of the spinal cord is receiving this information?
A. Dorsal
B. Lateral
C. Ventral
The root of the spinal cord that is receiving this information is A. Dorsal as this root of the spinal cord contains sensory nerves.
When you touch a hot stove, the sensory information regarding heat is detected by specialized nerve endings called thermoreceptors in your skin. These thermoreceptors send signals through sensory neurons to the spinal cord for further processing and transmission to the brain.
In the spinal cord, the sensory neurons carrying the heat information enter through the dorsal root. The dorsal root is located on the backside of the spinal cord and contains sensory nerve fibers, also known as afferent fibers.
These fibers transmit sensory information from the periphery, such as touch, temperature, and pain, to the central nervous system.
Once the sensory information reaches the dorsal root, it is relayed to specific regions in the spinal cord and then transmitted to higher brain centers for further interpretation and response.
This process allows your nervous system to quickly detect and respond to potentially harmful stimuli, such as the heat from a hot stove, to initiate appropriate protective actions like pulling your hand away to avoid injury.
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What has caused a large amount of desertification in tropical areas?
A. Earthworm castings
B. Liming
C. Over-irrigation
D. Overgrazing by cattle
Answer:
over-irrigation is the answer
How is rDNA made?Restriction enzyme action of EcoRI:
In conclusion, EcoRI is employed to cleave rDNA at its specific recognition site, resulting in pieces with complementary sticky ends that can be joined to generate recombinant DNA.
In recombinant DNA technology, EcoRI is a common restriction enzyme. The short summary of EcoRI's role in rDNA synthesis is as follows: DNA isolation: The first step is to isolate the desired DNA, which can be accomplished in a number of ways depending on the DNA's origin.
A host cell receives the recombinant DNA after which it can reproduce and make many copies of the rDNA. EcoRI addition: The isolated DNA is given EcoRI. A particular sequence of six nucleotides is recognized by the restriction enzyme EcoRI.
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Watersheds may be contaminated by fertilizers and other pollutants. When these substances enter a waterway, they can cause algal blooms, which are rapid overgrowths of algae. When the algae die, the decay uses up a large portion of dissolved oxygen. Declining oxygen levels can then cause large die-offs of animals in the waterway. What will an algal bloom in a watershed most likely cause?
Completed options
A)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.
B)A decrease in the watersheds ecosystem diversity, which would improve its ability to supply large volumes of water.
C)An increase in the watersheds genetic diversity, which would reduce its ability to supply clean and safe drinking water.
D)An increase in the watersheds species diversity, which would improve its ability to supply large volumes of wate
Answer:
)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.
Explanation:
This sequnces of events is called Eutrophication. It is the process of washing of nutrients salts e.g., (NPK) into aquatic bodies which leads to change in the ecosystem structure of the aquatic bodies with the boom in algae growth, and drop in O2.
The cut in oxygen availability in the aquatic bodies , leads to death of the fauna and flora.Theses are the varieties of life in this habitat.(biodiversity).
With the an increase in the death of these inhabitants(flora and fauna)couple with the activities of the (decomposers) the water bodies becomes dirty and unfit for drinking.
Besides as the pathways of the watershield ecosystem as it filters the these polluted water may be blocked by the dead organic matter from the flora and fauna. Thus A is the best.
What would be the end result if an
experiment has been repeated several
t mes and continues to support a
hypothesis?
A. setting up another experiment based on the same
hypothesis
B. developing a theory
C. graphing the data a different way
D. recoing the hypothesis
The end result if an experiment has been repeated several times and continues to support a hypothesis results into developing a theory. Thus, the correct option is B.
What is a Hypothesis?A hypothesis in a scientific context, is a testable statement which is about the relationship between two or more different variables or a proposed explanation for some observed phenomenon or experimental work.
A theory is a carefully thought-out explanation for all the observations which are made of the natural world which has been constructed using the scientific methods, and which brings together many different facts and hypotheses. Thus, the end result if an experiment has been repeated several times and continues to support a hypothesis is the development of a theory.
Therefore, the correct option is B.
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please help me if your right ill give you anything please hellppp
Answer:
C
Explanation:
An ecosystem food chain always starts with producers
Consumers then consume the energy from producers (prey on them)
Decomposers are organisms which break down dead material and provide energy to the environment for which producers can use which creates a looped cycle
Describe 2 symbiotic relationships between animals and chemosynthesizers seen at hydrothermal vents.
The first type of symbiotic relationship between animals and chemosynthesizers at hydrothermal vents is commensalism. and The second type of symbiotic relationship is mutualism.
Commensalism is when one organism benefits from the relationship while the other is neither harmed nor helped by it. For example, shrimp may live around the vents and scavenge food from the bacteria, while the bacteria still benefit from the warmth and minerals of the vents.
Mutualism is when two organisms both benefit from the relationship. For example, some species of clams at hydrothermal vents have bacteria living inside their gill tissues that produce energy for the clams through chemosynthesis.
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how is the frictional force produced?
Answer:
Frictional force refers to the force generated by two surfaces that contacts and slide against each other, If an object is pushed against the surface, then the frictional force will be increased and becomes more than the weight of the object
choose the four distinct features of meiosis i. multiple select question. sister chromatid centromeres remain connected. homologous chromosomes pair. maternal and paternal chromosomes are separated. dna replication is suppressed between meiosis i and ii. kinetochores of sister chromatids are attached to the same pole nuclear envelope formation is suppressed between meiosis i and ii.
The four distinct features of meiosis I are: i. Homologous chromosomes pair. ii. Maternal and paternal chromosomes are separated. iii. Kinetochores of sister chromatids are attached to the same pole. iv. Nuclear envelope formation is suppressed between meiosis I and II.
Meiosis is a specialized type of cell division that results in four haploid cells that have half the number of chromosomes as the parent cell. In Meiosis, the cell goes through two phases of division that help to produce four haploid daughter cells that are genetically diverse. These daughter cells will eventually mature into sperm and eggs in animals or spores in plants.
Meiosis is different from Mitosis in that meiosis involves two rounds of cell division and genetic recombination between chromosomes in the nucleus. The four distinct features of meiosis I are as follows:
1. Homologous chromosomes pair: Homologous chromosomes are chromosomes that have the same genes in the same location but may have different alleles. During Prophase I, the homologous chromosomes find each other and begin to pair up to form a tetrad. This is important because it is during this pairing up that they can exchange genetic information through crossing over.
2. Maternal and paternal chromosomes are separated: During Anaphase I, the spindle fibers begin to pull the homologous chromosomes apart so that each daughter cell gets one homolog from each parent.
3. Kinetochores of sister chromatids are attached to the same pole: In Metaphase I, the homologous chromosomes line up at the equator of the cell, and the spindle fibers attach to the kinetochores of the chromosomes. However, the kinetochores of the sister chromatids are attached to the same pole.
4. Nuclear envelope formation is suppressed between meiosis I and II: At the end of meiosis I, the cell is in a haploid state, and there is a brief interphase, where there is no DNA replication, and no nuclear envelope formation. It is essential to remember that meiosis is different from mitosis, which involves only one round of cell division, and no crossing over occurs between homologous chromosomes.
Hence, the four distinct features of meiosis I are- i. Homologous chromosomes pair. ii. Maternal and paternal chromosomes are separated. iii. Kinetochores of sister chromatids are attached to the same pole. iv. Nuclear envelope formation is suppressed between meiosis I and II.
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How would the absence of enzymes impact digestion
Answer:
When the pancreas doesn't naturally secrete digestive enzymes, it affects your body's ability to break down the foods you eat and absorb nutrients. This can lead to malnutrition as well symptoms such as bloating, cramping, gassiness, and diarrhea.
Explanation:
An enveloped virus is dependent on the envelope for its ability to infect a host cell. Which virus most likely uses this mechanism?
HIV
polio
rabies
Ebola
Answer:
rabies yeah I think rabies
Answer:
The answer is HIV also known as A
Explanation:
Good try though
ok if u get stressed a lot, your heart rate gets rlly high, u want to cry a lot and just are rlly stressed and breath heavy does that mean u have anxiety?
Answer:
i mean it could mean you got health problems or something but then again you could have anxiety!
Explanation:
:)
Answer:
It can, I have anxiety and I do those things... minus crying and heavy breathing
...unless I was just running. ;)
Explanation:
Viruses can mutate. What does that mean?
Answer:
Varies
Explanation:
There can be more of them at one time.
which of the following best describes a situation when a behavior that is no longer reinforced starts to appear again?
The situation when a behavior that is no longer reinforced starts to appear again is best described as resurgence. The correct option is c.
Resurgence refers to the reappearance of a previously extinguished behavior when the current behavior being reinforced is no longer available or reinforced. It occurs when a behavior that was once reinforced but has been suppressed or replaced by a different behavior reemerges in the absence of reinforcement for the current behavior.
When an individual is no longer receiving reinforcement for a specific behavior, they may exhibit a resurgence of previously learned behaviors that were effective in obtaining reinforcement in the past. This can happen due to the absence of reinforcement for the current behavior, leading to the individual attempting different behaviors in order to obtain the desired outcome.
In the given options, "resurgence" best describes this situation, as it specifically refers to the reappearance of a behavior following the removal or absence of reinforcement for a different behavior. The other options, such as "reinforcement burst," "ration-strain," and "immaculate behavior," do not accurately capture this phenomenon.
Therefore, option c, resurgence, accurately represents the described situation of a behavior reemerging when it is no longer reinforced.
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Complete Question:
Which of the following best describes a situation when a behavior that is no longer reinforced starts to appear again?
a. reinforcement burst
b. ration-strain
c. resurgence
d. immaculate behavior
QUICK HELP!! Describe the classification of plants. Be sure to include the two major groups and explain how they are further divided.
Answer:
Plants are grouped into two main categories, nonvascular and vascular plants. Vascular plants are further divided into seedless and seed plants. Seed plants are further divided into nonflowering and flowering plants.
Hope this Helps!
Answer:
Plants are grouped into two main categories, nonvascular and vascular plants. Vascular plants are further divided into seedless and seed plants. Seed plants are further divided into nonflowering and flowering plants.
Explanation:
Its correct on edg 2021, Have a blessed day
If an airplane was flying at an altitude of 9,144 m, what air temperature would it experience?
If the sugar concentration in a cell is 4% and the concentration in a cell’s environment is 2%, how can the cell obtain more sugar?
For a cell to obtain more sugar the cell must use active transport to pump the sugar inside it .
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration which occur against the concentration gradient . So , it requires cellular energy to achieve this action.
Main function of active transport is involves the movement of molecules from a region of lower concentration to a region of higher concentration with help of energy in form of ATP. examples of active transport include the absorption of glucose in the intestine of the human body and the uptake of minerals or ions into the root hair cells of plants.
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Fruit flies have 3 chromosomes plus sex chromosomes (X and Y). Mutations occurred within four different cells of an
individual female fruit fly as shown in the table below.
Which of these mutations could be passed on to the offspring of this fruit fly?
Group of answer choices
yellow body
leg-shaped antennae
curly wings
absent eyes
Answer:
Its either curly wings or yellow body
Explanation:
What temperature does cold/warm front bring,
Answer:
Temperature changes associated with cold fronts can be as much as 50 °F (30 °C). When cold fronts come through, there is usually a quick, yet strong gust of wind, that shows that the cold front is passing.
Explanation: