what Protects the cell and controls what enters and leaves the cell

Histones are proteins for chromatin to wrap around. You can't see them on a karyotype.

Answer:

histones

Explanation:

Answer:

symbiosis.

Explanation:

The term that you are referring to is symbiosis. (a symbiotic relationship)

Symbiosis is a proximate and often long-term interaction between two or more different biological species.

Answer:

the last one , the second to last one and the first one I am pretty sure

A, C and D are the student-Drawn Cell Models  that Contain Two Chromosomes.

Every cell in your body has DNA, which is the form in which your genetic code is stored. It creates your body's manual of operations. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.

A chromosome is referred to be a "homologous chromosome" if it has a similar genetic makeup but also includes replication-induced variations. Sister chromatids are the two halves of a certain chromosome that are joined at the centromere. Chromosomes known as "replication chromosomes" arise after the cell has undergone the process of DNA replication to prepare for cell division.

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Giraffe.

The other organisms mentioned either do photosynthesis or don`t apply to the statement. Giraffes are the only option able to take in oxygen and release carbon through the respiratory process.

The components of an ecg P wave, QRS complex, and T wave correspond to the events in the cardiac cycle.

The heart cycle contains two phases: the diastole phase and the systole phase. Heart ventricles relax and the heart fills with blood during the diastole phase. The ventricles constrict during the systole phase to move blood from the heart to the arteries.

The cardiac cycle, which is defined as the contraction and relaxation of the atria and ventricles during a single pulse, describes all of the actions of the heart. Systole is a contraction event (of the atria or ventricles), whereas diastole is a relaxation event.

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Answer:

2

Explanation:

The energy transformations that occur in the given devices are as follows:

Energy transformation refers to the processes by which one form of energy is transformed into another form.

The law of conservation of energy guides the various energy transformations that occur in the universe.

The law of conservation of energy states that energy is neither created nor destroyed but can be transformed from one form to another.

The energy transformations that occur in the given device are as follows:

In conclusion, energy transformations occur according to the law of conservation of energy.

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The half-life of C-14 is approximately 5,700 years. The time it takes for a sample to decay to 55g of C-14 can be calculated using the radioactive decay formula:

\(N = N0 * (1/2)^(^t^/^T^)\)

Where:

\(N_0\) = initial amount of the substance (in this case, 220g)

N = final amount of the substance (in this case, 55g)

t = time

T = half-life of the substance (in this case, 5,700 years)

To solve for t, we can rearrange the formula as follows:

t = (ln(N/N0)) * T / ln(1/2)

Substituting the given values:

t = (ln(55/220)) * 5,700 / ln(1/2)

t ≈ 11,400 years

Therefore, it would take approximately 11,400 years to reduce a biological sample of C-14 weighing 220 grams to 55 grams of C-14.

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According to the question the Sexual Reproduction: Horse egg and sperm unite.

Reproduction is the biological process by which organisms produce new individuals of their own kind. In most cases, it involves the fusion of two specialized reproductive cells, the female egg and the male sperm, to form a new and unique organism. Reproduction is a fundamental characteristic of all known life forms and is the process by which living things propagate their species. Asexual reproduction, which is reproduction without the fusion of gametes, is also common in some species, such as bacteria and plants. Reproduction is essential for the continuation of life on earth and is the foundation of the human population.

Asexual Reproduction: Bacteria divide by fission, A mushroom releases spores, A yeast cell develops a "bud", A pine tree releases pollen that gets trapped in a seed cone, Strawberry plant with runners.

Bacteria swap DNA during conjugation: Bacteria swap DNA during conjugation.

Gametes from protozoans fuse: Gametes from protozoans fuse.

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The proper sequences for the events at neuromuscular junction are:

A neuromuscular junction is a specialized synapse between a motor neuron and a skeletal muscle fiber. It is the point where the nerve terminal of a motor neuron meets the motor end plate of a muscle fiber, and where chemical transmission of nerve impulses to muscle fibers occurs.

When a motor neuron is stimulated, it releases the neurotransmitter acetylcholine, which binds to receptors on the motor end plate and initiates a muscle contraction. The neuromuscular junction is essential for voluntary movement and overall muscle function.

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Answer:

pretty sure that's magnification.

Answer:

Not under microscope:

Brownian motion is the constant but irregular zigzag motion of small colloidal particles such as smoke, soot, dust, or pollen that can be seen quite clearly through a microscope.

Under microscope:

detailed with texture (just go on about how it looks)

also what grade is this? Is this high school orrr

Explanation:

Explanation:

Hydrolysis contributes to

the development of a proton gradient

within the thylakoid membrane.

Thylakoid membrane is a membrane that is found in the membrane bound organelles chloroplast and also present in cyanobacteria which is the light dependent site for photosynthesis.

Therefore, Hydrolysis contributes to

the development of a proton gradient

within the thylakoid membrane.

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Answer: Photolysis

Explanation: I just took the test and hydrolysis is wrong.  

Answer:

Consider a marcomolecule an molecule containing multiple assets, including proteins and other vital assets to an individual atom.

Answer:

A macromolecule, such as a protein, is a very large molecule. They are made up of thousands of atoms that are covalently bound. Many macromolecules are polymers of monomers, which are smaller molecules. Biopolymers (nucleic acids, proteins, and carbohydrates) and huge non-polymeric molecules like lipids, nanogels, and macrocycles are the most prevalent macromolecules in biochemistry. Macromolecules include synthetic fibers and experimental materials such as carbon nanotubes.

Explanation:

hope it helps

Option (D) is the proper response because irrigation can raise the amounts of nitrogen and phosphorus in soil and water to risky levels, affecting ecosystem animals and plants.

The potential over-extraction of groundwater for irrigation has the potential to have direct detrimental environmental effects (withdrawing water in excess of the recharge rate). This may cause the water table to drop, land to sink, water quality to deteriorate, and saltwater intrusion in coastal areas.

Compared to sprinkler irrigation, flood irrigation loses less water to evaporation, but more water may be lost through runoff in the fields. The major reason we parameterize the irrigation techniques is to reflect their unique water use effectiveness.

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Secondary succession is the kind of succession that might develop in a neighborhood park after the Zombie Apocalypse if the grass wasn't cut anymore and pioneer species would first colonize the bare soil.

Thus, pioneer species like weeds and grasses would colonize the bare soil and disturbed regions in the initial stage of secondary succession. These species can swiftly adapt to a new habitat since they are frequently resilient and rapidly developing.

In secondary succession, the pioneer species are the early settlers multiply and spread, the soil conditions become more stable and draw in additional species like shrubs and tiny trees. These animals are modifying the environment in a way that makes it possible for bigger and more diversified populations of creatures to live in more complicated settings.

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Answer:

Photosynthesis

Explanation:

I just learned that today

Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell equally divides its copies of its chromosomes to give each daughter cell a full set before copying, or "replicating," them.

Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell equally divides its copies of its chromosomes to give each daughter cell a full set before copying, or "replicating," them.

A cell divides into two identical copies during the process of mitosis, each of which has the same number of chromosomes. Four gametes are produced during the meiotic division of a cell. Male gametes are more frequently referred to as sperm, and female gametes as eggs.

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Answer:

The change of color in the sample wells with the color in a known sample

Explanation:

Enzyme-linked immunosorbent assay (ELISA) is a technique widely used in molecular biology laboratories to measure antibodies, antigens and/or proteins in the samples that are being analyzed. This assay uses antibodies and color changes in order to identify target substances. The ELISA assay is heterogeneous because the antibody or the antigen is immobilized in a solid support composed by wells of microtiter plates. This assay uses chromogenic reporters and substrates that produce color changes, thus evidencing the presence of antigens which can be species-specific.

Cheetahs are one of my favorite creatures.

Cheetahs' physical characteristics, such as their speed, agility, and razor-sharp claws, have probably evolved over time to help them survive in their habitat.

Cheetahs are swift hunters that can pursue prey in wide-open savannahs. Their keen claws enable them to grip the ground while racing quickly.

Cheetahs may need to adjust to new environmental conditions in the future, including greater competition for food and water and habitat loss brought on by human activities.

They could need to change their hunting techniques, pick other prey, or even broaden their range to encompass new ecosystems.

Additionally, they might need to strengthen their defenses against illnesses and other environmental stresses in order to survive in a changing world.

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1. Make observations - option E. Plants grow well under sunlight or a lightbulb with a hot, white light.

2. Ask a question - option C. Do plants grow as well under a different color of light?

3. Test the hypothesis - option A. Put one plant under a white lightbulb, and place the other plant under a red lightbulb. Measure the growth of the two plants.

4. Analyze the results, and make a conclusion - option D. Determine whether the plant grown under the white lightbulb or the plant grown under the red lightbulb grew better.

5. Test or modify - option B. If you observe no change, repeat the experiment with different colors of lightbulbs. If there is a change, repeat the experiment for one or two more trials to ensure that the color of the lightbulb contributes to the change.

To design an experiment that investigates how plants respond to changes in their environment, we can follow the scientific method. The goal is to understand if different colors of light affect plant growth.

Here's an explanation of each step:

1. Make observations: Start by observing that plants grow well under sunlight or a lightbulb with a hot, white light. This observation forms the basis for the experiment.

2. Ask a question: Formulate a question based on the observation, such as "Do plants grow as well under a different color of light?"

3. Test the hypothesis: Put one plant under a white lightbulb and place the other plant under a red lightbulb. Measure the growth of the two plants over a specified period, noting any differences in their growth patterns.

4. Analyze the results and make a conclusion: Determine whether the plant grown under the white lightbulb or the plant grown under the red lightbulb grew better. Compare the growth rates, height, number of leaves, or any other relevant measurements to draw conclusions.

5. Test or modify: If you observe no significant change between the white and red light conditions, repeat the experiment with different colors of lightbulbs. If there is a change, repeat the experiment for one or two more trials to ensure that the color of the lightbulb contributes to the observed differences in plant growth.

The Question was Incomplete, Find the full content below :

Your teacher asks you to design an experiment that shows how plants respond to changes in their environment. You have two identical plants to do your experiment, and you may add any other equipment of your choosing. Using the scientific method, design an experiment that meets your teacher’s criteria.

Match each step of the scientific method with a step of the experiment.

1. Make observations.

2. Ask a question.

3. Test the hypothesis.

4. Analyze the results, and make a conclusion.

5. Test or modify.

A. Put one plant under a white lightbulb, and

place the other plant under a red lightbulb.

Measure the growth of the two plants.

B. If you observe no change, repeat the experiment with different colors of lightbulbs. If there is a change, repeat the experiment for one or two more trials to ensure that the color of the lightbulb contributes to the change.

C. Do plants grow as well under a different

color of light?

D. Determine whether the plant grown under the white lightbulb or the plant grown under the red lightbulb grew better.

E. Plants grow well under sunlight or a lightbulb

with a hot, white light.

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Answer:

A homeostasis

Explanation:

it was on a test I took

Answer:

The four major parts of natural selection are:

Variation: This refers to the genetic differences that exist among individuals within a population. No two individuals are exactly alike, and these genetic differences can affect traits such as size, color, behavior, and other characteristics.

Heritability: This refers to the ability of an individual's traits to be passed down to their offspring. If a trait is heritable, it means that the genetic basis for that trait can be passed on from one generation to the next.

Differential Reproduction: This refers to the fact that individuals with certain advantageous traits are more likely to survive and reproduce than individuals with less advantageous traits. This means that the advantageous traits will become more common in the population over time.

Selection: This refers to the process by which advantageous traits become more common in a population over time. Selection occurs because individuals with certain advantageous traits are more likely to survive and reproduce, passing their traits on to their offspring.

Together, these four parts of natural selection drive the evolution of populations over time. As advantageous traits become more common, the population becomes better adapted to its environment, and may even evolve into a new species if the changes are significant enough

Explanation:

Hey I got This ASAP So only Mark Me As Brainliest

Answer: Overproduction and Competition- There are more offspring born than the environment can support. This produces competition for limited resources in the ecosystem.

Genetic variation- There are naturally occurring variations in a population because of meiosis, which can create new allele combinations. Variation can also be introduced by mutations, or changes, in DNA. These mutations can sometimes be helpful to the organisms by creating alleles of genes that give the organism a survival or reproductive advantage.

Selection- The organisms with the most helpful traits that can find resources (food, water, mates) can survive and reproduce.

Inheritance and Adaption- Traits are passed from parent to offspring. Some of these traits are beneficial and help the individual survive better and reproduce more often in the environment. These traits are known as adaptations, and they tend to accumulate in a population due to the environment and natural selection.

Hello, the answer is Option A.

Line-wise answer:-

Some states authorize a to make healthcare decisions healthcare proxy for patients who can't make them because they're incapacitated.

Hope it helps you...

Benjemin ☺️

Answer:

The correct option is a. The eye-color gene is likely autosomal because males and females have similar phenotype ratios.

Explanation:

Available data:

              Males: 39 red eyes; 11 sepia eyes

77% of the total progeny has red eyes and 23% has sepia eyes.

Among females, 75% is red-eyed, and 25% is sepia-eyed

Among males, 78% is red-eyed, and 22% is sepia-eyed.

The general phenotypic ratio is 3:1

If the eye-color gene was sex-linked, the phenotypic ratios would be different. There would be a higher proportion of red-eyed females than red-eyed males. Females would only express red eyes, while males would express red and sepia eyes. This is

Cross:         X⁺X⁻   x    X⁺Y        (Note: The symbol + represents the allele R

Phenotype: red-eyed both                    and the symbol  - the allele r)                  

Gametes) X⁺       X⁻     X⁺    Y

Punnett square)    X⁺         X⁻

                      X⁺   X⁺X⁺     X⁺X⁻

                       Y    X⁺Y       X⁻Y

F2) 3/4 of the whole progeny would be red-eyed

     1/4 of the whole progeny would be sepia-eyed

  BUT

     Females: 100% red-eyed

     Males: 50% red-eyed and 50% sepia-eyed

These proportions are not coincident with the exposed real proportions

So,

c. The eye-color gene is likely sex-linked because the males and females have similar phenotype ratios.

If this gene was sex-linked, Males and females would not have similar phenotype ratios. This is FALSE.

d. The eye-color gene is likely sex-linked because the males and females display both phenotypes.

If this gene was sex-linked, Males would display both phenotypes, but females would only be red-eyed. This is also FALSE.

According to this, we can assume that this is an autosomal gene. If this is true, then

Cross:   Rr XX    x    Rr XY

Gametes) RX, RX, rX, rX

                RX, RY, rX, rY

Punnett square:

              RX       RX       rX       rX

RX      RRXX    RRXX   RrXX   RrXX

rX       RrXX      RrXX    rrXX    rrXX

RY      RRXY     RRXY   RrXY   RrXY

rY       RrXY      RrXY    rrXY    rrXY

F2)  From the whole progeny

       Phenotypic ratio 3:1

       Among females

        Phenotypic ratio 3:1

      Among males

       Phenotypic ratio 3:1

The phenotypic ratio in all cases are 3:1.

b. The eye-color gene is likely autosomal because more females have sepia eyes than males do.

Both males and females exhibit sepia eyes in equal proportions. This is FALSE

a. The eye-color gene is likely autosomal because males and females have similar phenotype ratios.

Males and females do have similar phenotype proportions of red eyes and sepia eyes. This is TRUE

Answer:

Because animals don’t have the same body as humans and animals are different from humand

Explanation:

They aid in our understanding of our place in the animal kingdom by allowing us to deduce evolutionary relationships between ourselves and other animals.

Change in the heritable characteristics of biological populations over successive generations is referred to as evolution.

These traits are gene expressions that are passed down from parent to offspring during reproduction.

Investigation reveals that there are three types of evolution: divergent, convergent, and parallel.

Charles Darwin is widely regarded basically as the discoverer of evolution. However, the historical record shows that between 1748 and 1859, the year Darwin published On the Origin of Species, approximately seventy different individuals published work on the subject of evolution.

Natural selection, a process that increases the frequency of advantageous alleles in a population, is one mechanism that drives evolution.

Natural selection produces organisms with a higher chance of survival and reproduction.

Thus, it is important to recognize that humans share many, but not all, characteristics with other animals.

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The BEST explanation of why engineering crops to be more tolerant of weedkillers enables farmers to stop or reduce tillage is that weeds can be killed with herbicides instead of through tilling.

The correct option is A.

Tillage is the process of mechanically preparing the soil by turning it over, which can be time-consuming, labor-intensive, and can disturb the soil structure.

By relying on herbicides instead, farmers can save time, reduce labor costs, and minimize soil disruption. This practice is often referred to as chemical weed control or chemical tillage and is a common technique used in modern agricultural practices.

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A few techniques that can be used to anchor aquarium plants in substrate for healthy growth includes; Tieing the plant to a rock or piece of driftwood, Using plant weights, Planting the plant in a pot and Using aquarium glue.

Tying the plant to a rock or piece of driftwood: This method works great for plants with rhizomes, like Anubias and Java Fern, as you mentioned.

Planting the plant in a pot: Some plants can do well when planted in pots with their preferred substrate. This is good because it is in a controlled enviroment and you can move plant without disturbing the plant.

plant weights: This method is said to be okay for buoyant plants that tend to float away before their roots can establish. However this can be disadvantagous if the weight is made with lead.

aquarium glue: This can be very effective for certain types of plants. It's important to use a glue that is safe for aquarium use (i.e., cyanoacrylate-based glues).

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Explanation:

System is a combination of several organs that perform together for a common function.

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