In nongreen parts of a plant, such as a potato, the cells of parenchyma tissue
lack chloroplasts but have large vacuoles and thin, flexible cell walls. This
structure enables the tissue to perform which function?
A. Control the passage of oxygen and carbon dioxide
B. Store lignin that eventually produces wood
C. Allow only certain materials to pass through the plant
D. Expand to store sugars, lipids, and water

Answer:

It's DNA.

Explanation:

DNA is the most recent utility to determine the origin of an organism and it's powers compared to it't weaknesses.

Nowadays, it is the primary tool:

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.

part of the microscope is needed to be adjusted to have better contrast when viewing a specimen under the microscope is condenser.

A microscope is a lab tool used to study items that are too small to be seen with the human eye. The study of small structures and objects under a microscope is known as microscopy. Microscopic refers to something that, without the use of a microscope, is undetectable to the eye. There are many distinct kinds of microscopes, and they can be categorised in several ways. One option is to explain how an instrument interacts with a sample and generates images, for as by passing an electron or light beam past the sample in its optical path, measuring photon emissions from the sample, etc.

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A hypothesis to have explanatory power because The hypothesis has been tested many times and over a wide variety of conditions (Option D).

A hypothesis can be defined as an explanation of a given question that emerged by observing the real world, which must be tested using the scientific method.

In conclusion, A hypothesis to have explanatory power because the hypothesis has been tested many times and over a wide variety of conditions (Option D).

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We can predict that approximately 3166 species would occur in the entire 1000-hectare reserve based on the provided data and the species-area relationship.

To predict the number of species that would occur in the entire 1000-hectare reserve, we can use the species-area relationship and the values of c and z provided. The species-area relationship is typically modeled using a power law equation of the form:

\(S = cA^z\)

where S represents the number of species, A represents the area, c is a constant, and z is the slope of the relationship.

In this case, we have log(c) = 0.699 and z = 0.608.

To find the value of c, we need to take the antilog (base 10 exponentiation) of log(c). Therefore:

\(c = 10^{(log(c))\)

\(c = 10^{(0.699)\)

c = 4.997

Now we can use the equation \(S = cA^z\) to calculate the number of species for the entire 1000-hectare reserve. Substitute A = 1000 into the equation:

\(S = 4.997 * 1000^{0.608\)

S = 4.997 * 633.939

S = 3166.40

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Answer:true

It is true

Explanation:

Answer:

Yup it's True!

Explanation:

Answer:

D

Explanation:

Answer:

Rainfall?

Explanation:

Im not sure on this but I think this is the correct answer.

Answer:

Binocular vision

Explanation:

Vision can be explained as an ability to see directly some things that can be a threat or of benefits . It can also be explained as the ability to sense or perceive threat or danger, or something good.

In this case, binoculars vision is a situation of sensing threats or dangers from a very distant place through the help of the brain. Most times, the brain will be able to sense dangers from the interpretation it gathered from what it saw earlier, before the person is involved in the act.

Answer:

Explanation:

he limitations of sending information using electromagnetic waves is that when the electromagnetic waves move outward in all directions, wave transmitters need to be focused to transmit their signals to a single specified location.

The statement that is true regarding cortisol is it is involved in homeostasis, Therefore, the correct option is A.

Cortisol is a steroid hormone that is involved in regulating various metabolic processes in the body, including the metabolism of carbohydrates, proteins, and fats.

It is also involved in regulating the immune system and inflammatory response, as well as maintaining blood pressure and fluid balance. Therefore, cortisol plays an important role in maintaining homeostasis in the body. Therefore, the correct option is A.

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Answer:

12.D

24.B

23.C

2.A

4.D

22.B

5.B

25A

1.C

6.A

11.D

18.C

13.A

19.B

14.B

16.A

17.D

8.C

3.A

7.B

Explanation:

*.*

Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.

Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.

These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.

For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.

Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.

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Answer:

yes

Explanation:

Because inorganic minerals and organic minerals have the same chemical compositions, they were confused by the early nutritionists. The mineral, iron, in the bloodstream has the same chemical composition as the mineral, iron, in a nail—iron is iron, after all.

Answer:

it is depends

Explanation:

It depends on what you are talking about Iron organic and inorganic are two totally different things.

dna unzips

Explanation:

In the forest, there is a diverse food chain that sustains various organisms. At the bottom of the chain are the producers, which in this case are the trees. They use photosynthesis to create their food and oxygen, providing a crucial foundation for the food chain.

Moving up the chain, we have the primary consumers, which are the herbivores that feed on the tree's leaves and fruits. The primary consumers in this food chain are the deer, who graze and browse on the trees throughout the forest.

Next in line are the secondary consumers, which are the carnivores that feed on the herbivores. In this food chain, the secondary consumers are the wolves, who hunt the deer for their sustenance.

Finally, we have the decomposers, which play a crucial role in breaking down dead organisms and waste into nutrients that can be used by the producers. In this food chain, the decomposers are the fungi and bacteria that break down the dead leaves and decomposing bodies of the deer and wolves, returning nutrients to the soil for the producers to use once again.

When a stem cell differentiates and changes in size and shape, specific genes are being EXPRESSED.

Gene expression involves the flow of genetic information from genes (DNA) to RNA and proteins.

Differentiation involves first the transcription of genes to messenger RNAs (mRNAs) and second the translation of these mRNAs to proteins.

During gene transcription, a fragment of DNA called 'gene' is used as a template to create an mRNA in the cell nucleus.

Subsequently, this mRNA travels to the cytoplasm where it is then used as template to create a protein by the process of translation.

In conclusion, when a stem cell differentiates and changes in size and shape, specific genes are being EXPRESSED.

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Answer:

expressed

Explanation:

Transcription is important in gene regulation because it controls the production of mRNA, which ultimately determines the expression of genes.

Transcription is the process by which the genetic information stored in DNA is converted into RNA. This RNA, in turn, is used as a template for the synthesis of proteins. By controlling the rate and timing of transcription, cells can regulate the expression of genes. This is particularly important in both bacteria and eukaryotes because it allows them to respond to changes in their environment and to different developmental cues. In bacteria, transcriptional regulation is often achieved through the binding of specific regulatory proteins to DNA sequences near the gene of interest. In eukaryotes, transcriptional regulation is more complex and involves a variety of mechanisms, including chromatin remodeling, DNA methylation, and the action of transcription factors.

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Explanation:

cells and cancerous chicken stomach cells, excluding interphase, which had a dramatic difference. ... The stage that held the most difference was Interphase. In normal chicken cells, the duration for interphase was 550 minutes. However for interphase in cancerous chicken stomach cells, it was 380 minutes.

Answer:

Answer:i just simple formulas just remember in bio emzymes live through cells and make up the cell there are millions of different enzymes

Explanation:

brainiest

Explanation:

entroy in a system approaches a constant as temperature approaches zero

Answer:

Scientists used the scientific method of investigation to test this phenomenon. The scientific method consists of these steps:

Make observations: Scientists observed that nerve damage causes severe pain. Scientists knew bone marrow cells seemed to decrease nerve pain, but the reason was unknown.

Ask questions and construct the hypothesis: Would injecting bone marrow cells into the spinal cord decrease pain?

Test the hypothesis: Injected bone marrow cells into the spinal cord of mice that had nerve damage. Observed changes in the cells, and monitored the pain levels in the mice.

Analyze the results and make a conclusion: Determined that the pain decreased because the bone marrow cells released a pain-relieving protein that helps damaged cells.

Test and modify: Make a plan to repeat the test in humans.

Explanation:

Answer:

False please mark me brainlest.

Explanation:

The energy pyramid is the diagrammatic representation of the amount of energy that is transferred between different trophic levels in an ecosystem.

The energy transfer is always unidirectional i.e. it moves from lower to higher trophic levels but energy loss takes place at each trophic level.

The amount of energy that is lost at each level of the energy pyramid is due to several reasons.

Firstly, the energy that is stored in the form of food is never utilized entirely by the organisms.

A significant amount of energy is used up in carrying out the basic metabolic activities such as respiration, digestion, and transportation.

Secondly, the food that is consumed by the organisms is not always digested completely.

A significant proportion of the food is excreted out as feces which represents the loss of energy for the consumer.

Lastly, some of the energy is always lost as heat during the process of respiration which is ultimately released to the environment.

Energy loss at each trophic level is inevitable because the total amount of energy that is available at one trophic level is always greater than the amount that is transferred to the next level.

Typically, the amount of energy that is lost at each trophic level can vary between 80% to 90%.

For example, if the energy stored in primary producers is considered to be 10,000 kcal then only 10% i.e. 1000 kcal of energy would be transferred to the primary consumers.

Further, only 10% of this 1000 kcal energy i.e. 100 kcal would be transferred to the secondary consumers.

The rest of the energy would be lost in the form of heat during metabolic activities.

Thus, it can be concluded that the energy transfer between different trophic levels is unidirectional and energy loss is an inherent characteristic of this transfer. Typically, the energy loss at each trophic level can be quite significant and can vary between 80-90%.

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Explanation:

The most basic rasen that cells are stained is enhance visualization of the cell or certain cellular components under a microscope

Unfortunately, throughout history, many deaf individuals have been viewed as needing to be "cured" or fixed. This often involved invasive and harmful procedures such as forced oralism (where they were prohibited from using sign language), electroshock therapy, and even lobotomies.

These attempts at "curing" deafness were rooted in ableist and oppressive beliefs that deafness was a problem that needed to be solved, rather than a valid and diverse way of being. It is important to recognize and challenge these harmful practices, and instead work towards creating a more inclusive and accepting society that values and celebrates diversity.

Many deaf persons have been the involuntary objects of attempts to cure them due to societal misconceptions and a lack of understanding about deaf culture. Over the years, various medical treatments, surgeries, and devices have been introduced with the aim of "fixing" deafness, often without the consent or input of the deaf individuals themselves. These attempts have included cochlear implants, hearing aids, and experimental therapies. While some deaf individuals may choose to pursue these options, it is crucial to respect their autonomy and recognize that deafness is not something that needs to be "cured" but rather embraced as part of one's identity.

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The Hardy-Weinberg equilibrium has helped modified biologists' interpretation of Darwin's original contributions in that it helped scientists to understand evolutionary changes in terms of mutation.

Genetic engineering has helped modified biologists' interpretation of Darwin's original contributions by equipping scientists with tools to bring about changes in the genes of organisms faster than natural selection would.

The Hardy-Weinberg equilibrium states that the frequencies of alleles and genotypes will remain constant from generation to generation in a large, randomly mated population that is not subject to mutation, migration, natural selection, or genetic drift.

In a population where these conditions are met, evolutionary changes are not observed.

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Complete question:

Darwin is considered the "father of evolutionary biology." Four of his contributions to the field of evolutionary biology are listed below.

The non-constancy of species

Branching evolution, which implies the common descent of all species.

Occurrence of gradual changes in species Natural selection as the mechanism for evolution

Darwin's ideas have been enhanced and modified as new knowledge and technologies have become available. Discuss how TWO of the following have modified biologists' interpretation of Darwin's original contributions.​

o Hardy-Weinberg equilibrium

o Punctuated equilibrium

o Genetic engineering

Answer: dna replication

Explanation:

Answer:

Hmmm, it seems like it should be B

Explanation:

Because the DNA have crossed over with each other... I could be wrong though... and I don’t mean to throw shade at the other person that answered...