Choose the letter that indicates the organelle that contains most of a cell's DNA. An animal cell with definite structures labeled from A to E. The vesicles with solid particles inside are labeled A.
The vesicles with no solid matter inside are labeled B.
The large membrane-bound organelle is labeled C. It is located in the center of the cell and contains a mass of densely stained granules and fibers.
The structure labeled D consists of flattened membranous-like stacks.
The tiny dots labeled E are located everywhere in the cell and do not have any membrane.
Answers
Answer:
C.
Explanation:
A cell is composed of specific structures that perform specialized functions called ORGANELLES. Among these organelles, an important one exists called NUCLEUS, which is responsible for all other cellular functions as it directs them.
The NUCLEUS is located centrally in the cell and is found as a membrane-bounded organelle in cells that possess it (eukaryotes). The NUCLEUS, which is described in this question with the letter "C" contains most of a cell's genetic material called DNA.
Related Questions
18. in fruit flies, brown bodies (b) are dominant to black bodies (b). cross a black fruit fly with a heterozygous fruit fly. determine the phenotypic and genotypic ratios of their potential offspring.
Answers
Both brown flies (genotype Bb) and black flies (phenotype bb) are potential phenotypes of heterozygous fruit flies with brown bodies (Bb) that are crossed with black bodies (bb) (genotype bb).
The Punnett square is a genetics diagram that is used to determine the potential phenotypes and genotypes in offspring based on the cross, in this example Bb x bb to produce Bb and bb children.
The Punnett square may therefore be used to determine the phenotypes in the following generation by their genotypes, as shown by the data in the question above.
It has the name of Reginald C. Punnett, who developed the strategy in 1905. The likelihood that a child will have a specific genotype is calculated by biologists using the square figure.
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Calculate the average speed of hydrogen nuclei (protons) in a gas of temperature 27 million K
Answers
The average speed of hydrogen nuclei (protons) in a gas can be calculated using the root-mean-square speed formula:
v_rms = sqrt((3kT)/m)
where k is the Boltzmann constant (1.38 x 10^-23 J/K), T is the temperature in Kelvin, and m is the mass of one hydrogen nucleus, which is approximately 1.67 x 10^-27 kg.
Plugging in the values:
v_rms = sqrt((3 * 1.38e-23 J/K * 27e6 K) / 1.67e-27 kg)
v_rms = 1.38 x 10^5 m/s
Therefore, the average speed of hydrogen nuclei (protons) in a gas of temperature 27 million K is approximately 1.38 x 10^5 m/s.
a person who is homozygous has two of the same alleles for a trait. a person who is heterozygous has two different alleles for a trait. using r and r as the two alleles for tongue rolling, select the two genotypes that are homozygous.
Answers
Each gene in each of us has two different alleles, or variations. You are considered to be heterozygous for a gene if you have two identical instances of it.
Exactly what kind of gene is that?
Your inherited genes play a big role in how you look, including what color your skin are. Possibly Emma inherited the red hair trait from her mother, who contains the both brown and red head genes. If her father possesses two red hair genes, her red hair may have an explanation.
How do genes differ from DNA?
Your DNA is what builds and keeps up your human anatomy. Genes are parts of the DNA that are responsible for your unique physical characteristics. Your brain's cells are directed by a comprehensive manual that is all around you.
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inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Answers
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
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Incubation time is the time for the symptoms of a disease to occur after exposure. Consider the data on incubation time of different viral diseases in the Table below. Use thedata to predict which diseases are caused by viruses that undergo the lytic cycle and whichare caused by viruses that undergo the lysogenic cycle. What is the possible public healthconsequence of the incubation time for diseases caused by proviruses (i.e., viral DNA thathas become part of the host chromosome)?
Answers
Let's define a couple of key terms:
• Lytic Cycle,: The lytic cycle is the "faster" virus cycle of the two. It consists of usually ,bacteriophages, that infect a host cell, replicates, then ,destroys, the cell.
,• Lysogenic Cycle,: The lysogenic cycle is the "longer" of the two cycles. It consists of viruses that infect the host cell but the viral genome ,fuses, with the host's DNA, lying ,dormant, for a long time.
Applying DefinitionsLet's take what we just defined and apply it to the given data table.
We are given a data table with several different known viruses and their incubation time. This is a key category to look at to determine whether the virus follows the lytic or lysogenic cycle.
• Measles | Incubation Time: 9 - 11 days |
Since the incubation time is short, this virus follows the lytic cycle.
• Shingles | Incubation Time: years |
Since the incubation time is long, this virus follows the lysogenic cycle.
• Warts | Incubation Time: months |
Since the incubation time is long, this virus follows the lysogenic cycle.
• Cold | Incubation Time: 2 - 4 days |
Since the incubation time is short, this virus follows the lytic cycle.
• HIV | Incubation Time: 2 - 5 years |
Since the incubation time is long, this virus follows the lysogenic cycle.
Now we have filled out the entire data table!
Please help !!!!!!!!!!!
Answers
Answer:
1) Weathering, Erosion, Disposition
2) Physical weathering is the breakdown of large rocks into fragments by physical forces; the chemical composition of the rock is not changed. Chemical weathering is the breakdown of rock by chemical reactions; the chemical composition is changed.
3) The four forces of erosion are water, wind, gravity, and glaciers.
4) Because the velocity of the river slows down a great deal when it reaches the large body of water, the sediment that the river was carrying is deposited along the mouth of the large body of water.
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Abrasion: Abrasion is the breaking down and wearing away of rock material by the mechanical action of another rock. Three agents of physical weathering that cause abrasion are moving water, wind, and gravity. Also, rocks suspended in thence of a glacier can cause abrasion of other rocks on Earth's surface. This would be a prime example of physical weathering, or mechanical weathering.
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Acid Precipitation: Acid rain causes less erosion than normal rainwater does. Rainwater can break down rocks by dissolving minerals in the rocks. Acid rain is rainwater that is more acidic than normal rainwater. Acid rain can also dissolve the minerals in rocks faster than normal rainwater can. This is chemical weathering.
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Animal actions: Animal and plant mobility is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the fracture to expand. A rabbit may also burrow into a crack in a rock, making it wider and eventually separating the rock. This is an example of physical weathering.
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Ice wedging: Ice wedging ,sometimes known as frost wedging ,can also cause rocks to break apart. Ice wedging causes cracks in rocks to expand as water seeps in and the water freezes and expands opening the crack further. Rocks formed under pressure deep within earth can become exposed at the surface. This is physical weathering
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Oxidation: Oxidation is another kind of chemical weathering. It occurs when oxygen from air dissolves in water and combines with chemicals in the rocks to form oxides. if the rock contains a lot of iron, then oxidation produces a brown material called iron oxide. This looks like rust on the rock.
What is the difference between weathering erosion and deposition?Weathering is the chemical and mechanical breakdown of exposed rock. The chemical changes alter the minerals and make them softer, and mechanical weathering physically breaks rock into smaller and smaller pieces.
Erosion is the REMOVAL of those chemically and mechanically softer and broken pieces of rock from their original locations, by gravity, water, ice or wind. Erosion is transport (and as a result, fresh unaltered rock is exposed to wind, water and weather, and THAT becomes weathered in turn). The material being transported is ‘sediment’: sand, silt, mud and gravel.
Deposition is when the weathered and eroded (transported) material is dropped and settles down elsewhere, forming a ‘deposit’ of transported rock material.
If this deposit remains undisturbed long enough, and is buried by enough arriving material, it will eventually go through compaction and chemical reactions forming cement between the grains - thus resulting in a brand new, sedimentary rock.
Weathering, erosion, transport, deposition, compaction and cementation are part of the ‘rock cycle’.
How can the complete rock cycle be described?Let’s start with basalt that form at mid ocean spreading centers. At mid ocean spreading centers rock material from the earth’s mantle continuously melts due to continuous decreasing in pressure from the oceanic crust spreading at this point. The molten rock quickly cools at the earth’s surface and forms rock known as basalt that makes up the oceanic crust all over the world. The newly produced oceanic crust rock slowly moves towards a boundary with a continental crust where the oceanic crust subducts beneath the continental crust due to the oceanic crust having a higher density than the continental crust. This is where things get a bit more interesting.
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4.Wildebeests are cow-like animals with horns. They migrate in herds across Africa in
search of the grasses the feed on. Wildebeests are prey for lions.
Predict the impact that a drought would have on the wildebeest population. You should
include information on what the wildebeest population would have to do in order to
survive.
Answers
The wildebeest populations existence would become significantly threatened by droughts due to the shortage of food and water sources which could result in malnutrition or their easy prey by predators in their habitat.
What the wildebeest population would have to do in order to survive?It is possible for these animals to employ certain survival strategies such as:
Migrating farther away than usual from the drylands in search of areas that have enough nourishment supplies like edible grasses, leaves or fruits which are essential for their sustenance under extreme weather conditions like droughts. Changing dietary habits to include more diverse nutritional options available locally other than relying solely on grasses can also aid them in adapting better towards shortages during the scarcity season.Learn about Drought here https://brainly.com/question/26751675
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cells increase in size during?
Answers
Answer:
mitosis
Explanation:
The increase in size and changes in shape of a developing organism depend on the increase in the number and size of cells that make up the individual. Increase in cell number occurs by a precise cellular reproductive mechanism called mitosis
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Answers
Answer:
Swelling, itching or irritation of the mouth or throat. Hives, itchy rash or swelling of the skin. Nasal congestion.
When the villi get destroyed, your body cannot absorb nutrients. This can result in malnutrition. It can also cause other complications, such as permanent damage to your small intestines.
Describe temperate grassland ecosystem characteristics. Include climate, an example of a producer, and an example of a consumer in your response.
Why are coral reefs an important marine ecosystem?
Coral reefs fuel phytoplankton and zooplankton.
Coral reefs are home to large, endangered mammals, such as the right whale.
Coral reefs help to maintain the temperature of the ocean.
Coral reefs are home to millions of species of marine animals.
which zone are you most likely to find an animal that eats seaweed and other ocean plants?
midnight zone
twilight zone
photic zone
dysphotic zone
Describe temperate broadleaf forests. Be sure to include examples of producers and consumers, as well as the climate and types of trees, found in this forest ecosystem.
Answers
A grassland is a biome where dominant vegetation is grasses, a consumer of this biome can be a herbivore (e.g., a rabbit). Coral reefs are home to millions of species of marine animals.
Coral reefs, seaweed and forest biomeCoral reefs are fundamental for protecting wildlife in marine ecosystems.
Seaweed is a common plant in the Euphotic Zone (Sunlight Zone, also called Epipelagic Zone), along with algae and phytoplankton.
Temperate broadleaf forests are represented by areas with marked warm and cool seasons that show moderate annual average temperatures (3 °C to 25 °C).
Examples of producers in a temperate broadleaf forest may be Eucalyptus species, whereas consumers may include, for example, elk, etc.
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Introduction: . The Temperate Broadleaf Deciduous Forest (TBDF)–especially in eastern North America, where is remains...
Climate: . Associated with warmer continental and humid subtropical climates (Dfa, Cfa, and–in Europe, Cfb). There is an...
Vegetation: . Many of the same genera, previously part of an Arcto-Tertiary Geoflora, are...
Explanation:
Propose five ways in which the government can ensure that the help it offers is received only by the people who are in need?
Answers
As the Sustainable Development Goals (SDGs) were being approved in late 2015, my colleagues here at ODI delivered the Projecting Progress scorecard.
What are five ways the government can guarantee that the help it offers is obtained only by the people who are in need?By encouraging the need to create cooperatives throughwhich the country can be funding them.By working with the church to identify the weak in the society so that the required help can go to the right people.By forming commitees that should be glancing at the need in the community Ensure governments and supporters have a formal process to track, review and debate progress towards achieving the ‘leave no behind’ agenda. pretending to be needy.Prioritise policies that target those most at risk, orient financing towards them, and deliver better data
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1. Friction can cause a moving object to stop.
TRUE OR FALSE
Answers
Answer:
true
Explanation:
cus over a time when the objects energy get's reduced it would be halted by friction
Friction can absolutely causes a moving object to stop (stationary). So, the answer is True.
What is Friction?
It is a type of force that tries to slow down or stop the movement of a moving object when the two surfaces are touching each other.
To stop the object, surfaces also play an important role. For example, Rough surfaces produce more friction otherwise things would be just rolling.
Therefore, friction can cause a moving object to stop.
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DNA found at a crime scene is cut using restriction enzymes and then ran through a gel using electricity. The bands formed on the gel are compared to bands formed 5 suspects to determine which DNA matches.
(A) Genetic Engineering
(B)Artificial Selection
(C)Gel Electrophoresis
Answers
C) Gel electrophoresis. To compare DNA samples taken from a crime scene and a suspect, forensic analysts employ the laboratory process known as DNA fingerprinting.
Despite the fact that 99.9% of the human genome is the identical throughout the population, individual differences can be seen in the remaining 0.1% of human DNA. These changeable DNA sequences, also known as polymorphic markers, can be electrophoresed on a DNA gel to create distinctive DNA banding patterns on an agarose gel. Individuals can then be distinguished or correlated using the DNA bands.
You will be tasked with examining the DNA of two suspects that were identified from a crime scene using human DNA evidence (such as skin cells or hair).
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.Which of the following lists the four agents of chemical weathering?
a.Hydrogen, oxygen, carbon dioxide, deposition
b.Water, water vapor, ice, glacial movement
c.Water, wind, fire, oxygen
d.Water, carbon dioxide, oxygen, acid produced by decaying plants and animals
Answers
Answer:
answer is water oxygen and acid
Answer:
d
Explanation:
Answer the question above
Answers
Answer:
i think it's March
Explanation:
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Why won’t the antibodies for the common flu virus work against the avian flu?
[ give like 1-2 sentences for this one you don't need to specify that much (unless you want to) ]
Answers
True or false when a haploid sperm and a haploid egg join the result is a diploid cell  
Answers
Answer: true
Explanation:
Once fertilized, the egg is called a zygote. Fertilization is not complete, however, until the two haploid nuclei (called pronuclei) have come together and combined their chromosomes into a single diploid nucleus.
Please help me with this
Develop a plan for building a fish pond and include what kinds of fish and plants are suitable for the pond fish.
Answers
Building a fish pond can be a great addition to a backyard or garden and can provide an opportunity to keep and cultivate fish for recreational or commercial purposes.
How do you build a fish pond?Here's a plan for building a fish pond, along with some suggestions for suitable fish and plants:
Choose a suitable location: The first step in building a fish pond is to choose a suitable location. Look for a spot that is level and receives a good amount of sunlight. Avoid areas that are too close to trees or other sources of debris, as falling leaves and branches can contaminate the water.
Determine the size of the pond: The size of the pond will depend on the number and size of fish you plan to keep. A good rule of thumb is to have at least 100 gallons of water for every one inch of fish.
Dig the pond: Once you've determined the location and size of the pond, it's time to start digging. Use a shovel or backhoe to excavate the soil and create the shape of the pond. The depth of the pond should be at least 3-4 feet to ensure adequate water circulation and temperature regulation.
Install a liner: Once the pond is dug, install a liner to prevent water from seeping into the soil. Choose a high-quality liner made of EPDM or PVC to ensure durability and longevity.
Install a filtration system: To keep the water clean and healthy for fish, install a filtration system that includes a pump, filter, and UV clarifier. These components work together to remove debris, harmful bacteria, and other contaminants from the water.
Add suitable fish: When choosing fish for your pond, consider the size, temperature requirements, and compatibility of different species. Some suitable fish for a backyard pond include koi, goldfish, and trout.
Add aquatic plants: Aquatic plants can help to oxygenate the water and provide a natural habitat for fish. Some suitable plants for a fish pond include water lilies, water hyacinths, and duckweed.
Add decorations and lighting: To make the pond more attractive and enjoyable, consider adding decorative elements such as rocks, statues, and lighting.
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PLEASE HELP WITH THIS
Answers
1 pts
Question 5
Time Runnin
Attempt due: 0
4 Minutes,
Which of the following statements uses the term variation
correctly?
A population has variation in its number of individuals
There is variation in the number of traits a population has
A population has variation in height
An individual has variation in heignt
Answers
Answer:
there is variation in the number of traits
Explanation:
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do you think animal farming may be done in the city why
Answers
Answer:
Yes but it is more complicated. Because you need a huge space and strict sanitary for establishments and household in cities are built a bit closer than in provinces.
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Answer:
Livestock have an important role to play in society; even within cities, they are not only important for the production of food, but also in terms of waste disposal, public health and for social aspects. ... However, the side-effects are twofold - animals not only cause pollution, they can also help to clean the city.
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What two things must happen for there to be a proxigean spring tide?
full moon and the closet perigee
new moon and the furthest apogee
new moon and the closest perigee
full moon and the furthest apogee
Answers
Answer:
Full or New Moon + Perigee
Why the rainforest in Costa Rica is not rich with plants? Remember to use scientific language
Answers
Answer:
Deforestation is the major problem causing lack of rich species in Costa Rica. This is due to over grazing by cattle.This may lead to flooding which affect fertility of the soil.These animals graze on the plants without regulations,and cause erosion as their hoofs percolate the soil, further reducing soil fertility.
In addition to sustain the beef production, trees were fell to for cattle ranching.This ultimately contributed to loss of the forest species.
Banana plantation is an additional factor.Forest were cleared to cultivate banana, which affects forest population.
Explanation:
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Temperature regulation is the human condition chosen for this project. The human body must maintain a core body temperature of around 37°C, despite environmental temperature changes. The following information answers the questions:
What circumstances surround temperature regulation?Factors that can shift the body temperature include exposure to hot or cold environments, fever, and physical activity.
The organ systems involved in the homeostasis process of temperature regulation are the nervous and endocrine systems, as well as the integumentary (skin), cardiovascular, and respiratory systems.
Negative feedback is used to maintain temperature homeostasis. For example, when the body temperature rises, the hypothalamus signals the sweat glands to secrete sweat, which cools the skin and lowers the body temperature.
The stimulus is the change in body temperature, the receptor is the thermoreceptor in the skin or hypothalamus, the integrating center is the hypothalamus, the effector is the sweat glands or muscles, and the response is sweating or shivering.
Strategies to help maintain temperature balance include wearing appropriate clothing, using heating or cooling devices, and maintaining physical fitness through exercise.
Sources:
Guyton and Hall Textbook of Medical Physiology, 13th edition
Saladin Anatomy and Physiology, 8th edition
Tortora and Derrickson Principles of Anatomy and Physiology, 15th edition
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The myenteric plexus is located in which layer of the alimentary canal?
A. Mucous
B. Serosa
C. Sumucosa
Answers
Answer:
A) mucous
Explanation:
The myenteric plexus is located in which layer of the alimentary canal?
A. Mucous
B. Serosa
C. Sumucosa
Wall of the alimentary canal contains four tissue layers which are
✓ the mucosa
✓ submucosa
✓muscularis
✓serosa.
The mucosa can be regarded as innermost tunic of the wall, which
serves as lines in the lumen of the digestive tract. It contains epithelium, which is an underlying loose connective tissue layer, and it reffered to as " lamina propria" along with thin layer of smooth muscle that is reffered to as" muscularis mucosa" .The myenteric plexus is found in between longitudinal layers as well as circular layer of the muscularis externa. It serves as the one that regulate neuronal intestinal motor function.
please help due tomorrow ! which one a, b , c or d ?
Answers
Answer:
B?
Explanation:
and wth is ''the rock cycle''
what impacts do the amounts of available energy, water, and oxygen have on an ecosystem?
Answers
Answer:
What impact do the available amounts of energy, water, and oxygen have on an ecosystem? They act as limiting factors. ... increasing the biodiversity of the ecosystem.
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we know that there is a chemical reaction if we observe things like a change in BLANK producing a BLANK forming a BLANK or changes in BLANK
Answers
Use the word bank below to complete the passage below describing mitosis and meiosis. All words will be used at least once and most words will be used more than once.A) diploidB) mitosisC) meiosisD) sister chromatidsE) haploidF) homologous chromosomes1) A male giant panda has 42 chromosomes in its skin cells. This represents the _________ chromosome number. As the animal's old skin cells die and slough off, cells nearby divide through _________ to produce more skin cells. 2) Germ cells within the animal's testicles undergo _________ to replicate themselves and _________ to produce sperm. 3) The cells produced by mitosis in this panda have a _________ chromosome number and are produced after _________ are pulled apart into separate daughter cells.4) The cells produced by meiosis I in this panda have a _________ chromosome number and are produced after _________ have been pulled apart into separate daughter cells. 5) The cells produced by meiosis II in this animal have a _________ chromosome number and are produced after _________ have been pulled apart into separate daughter cells.
Answers
Answer:
1. diploid ,Mitosis
2. mitosis, meiosis
3. diploid, sister chromatids
4. haploid, homologous chromosome
5. haploid, sister chromatids
Explanation:
1. The Giant Panda has 42 chromosomes but these chromosomes exist in the form of homologous pairs therefore the Panda are diploid organisms. The somatic cells of the Panda undergo mitosis like skin cells.
2. The Germ cells are present in the testicles of the Panda which makes an exact copy of themselves by mitosis but these germ cells undergo meiosis to produce sperms.
3. The Mitotic division forms two daughter cells with the same genetic material because the sister chromatids of homologous chromosomes move to the opposite pole.
4. The meiosis I am also known as reductional division as the homologous chromosome separate and move to opposite poles during meiosis I and the ploidy changes from diploid to haploid.
5. During meiosis II, the sister chromatids of a chromosome separate and move to the opposite poles as a result of this the haploid cells are formed.
Suggest three reasons why the percentages are so much higher in Sub-Saharan Africa.
Answers
Answer:
education on HIV / AIDS less effective;
sexual attitudes / number of partners ;
availability of condoms ;
poverty / poorer / less money ;
sex industry ;
less primary health care / less likely to be diagnosed
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