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The polysaccharide that is responsible for the strong structural nature of cell walls of plants is cellulose.

The cellulose is an organic molecule that is made up of several units of glucose monomer. The cellulose which make up a large percentage of plant cell walls are composed of a network of several units of glucose monomer that are tightly linked together.

The cellulose, as well as lignin and hemicellulose, which constitutes the tensile fibers in the cell walls of plants, is the polysaccharide responsible for the strong structural nature of plant cell walls.

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Answer:

A

Explanation:

Cancer is the uncontrolled increase of cells, so when the rate of mitosis increases, so does the number of cells. This means A is the answer.

Uncontrolled cell growth is cancer. Gene mutations can increase the pace of cell division or suppress natural mechanisms that keep the body in check, like cell cycle arrest or programmed cell death. Thus, option A is correct.

The cell's size, the presence of neighboring cells, and other chemical stimulators are three of the key elements in mitotic regulation.

Numerous mitogens are involved in regulating mitosis. Therefore, cell size, cell existence, and chemical stimulators are the proper answers.

When cancer cells develop in body tissues, they undergo aberrant cell growth patterns known as hyperplasia and dysplasia.

An increase in the quantity of cells in an organ or tissue that look normal under a microscope is known as hyperplasia.

Therefore, An abnormal and uncontrolled increase in the rate of mitosis is frequently associated with an individual developing cancers.

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Answer:

Ecological niches allow species to exist in their environment. Under the right conditions, the species will thrive and play a unique role. Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.

If two species occupied the same niche, they would be competing for the exact same resources. The competitive exclusion principle states that one of the species would drive the other to extinction.

Explanation:

Answer:

Mutation is any change in DNA sequence of an organism. Mutantion can occur in any living organism including plants, animals, fungi, bacteria and protists.

Explanation:

Answer:

Explanation:white moths will be spotted easier and killed and the population would drop while the dark moths population will rise

The population of white moths at the light tress will increase over time with the process of natural selection.

The trees are a light color population. Dark moths are unable to camouflage with the tress, while white moths camouflage with the trees.

The white and black moths at the tree are an example of a tree ecosystem. The moths are the target for the predators.

The process of natural selection is the evolutionary process with the survival of the fittest. The species that are able to survive in the inappropriate conditions are able to evolve.

In the tree ecosystem, the white moths are camouflaged with the trees. They will not be an easy target for predators. They will survive with the theory of natural selection.

The black moths are not camouflaged with the tree ecosystem. They are easily identified by the predators and are killed.

Thus, white moths are the fittest and with natural selection, they evolve.

Therefore, the population of white moths at the light tress will increase with natural selection.

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Answer:

1. Ozone

Explanation:

Ozone is a substance with the chemical formula, O3, found in the stratospheric part of the atmosphere. It functions to prevent the harmful ultraviolet (UV) radiation from the sun from reaching the Earth. However, due to anthropogenic activities i.e. human activities that releases greenhouse gases e.g. CO2, CFC etc. the protective function of the ozone layer is wavering.

Hence, based on this question, people are concerned over the fact that this OZONE layer is depleting, hence, risking the exposure to the harmful radiation from the sun.

Answer:

The baby not fully developing

Answer:

Hope this helps:)

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The stages of cellular respiration include  the following such as glycolysis,

electron transport chain and Krebs cycle.

Cellular respiration involves the various reactions done in cells of organisms

in order to ensure that chemical energy derived from food and other sources

are converted into ATP.

Cellular respiration involves processes such as glycolysis,

electron transport chain and Krebs cycle. Other processes however include

electron transport chain and phosphorylation.

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Answer:

new adaptations come from:

New combinations of genes from parents.

Mutations in the DNA passed on to an organism.

Explanation:

Mutations in the DNA passed on to the organism and bring adaptations in the form of new characteristics. mutations may b lethal or fruitful and develop new characteristics in an organisms and increase its survival.

new combinations of genes from parents results from crossing over and recombination. these new genetic combinations bring adaptations.

Answer:

a lung disease caused by breathing in very small pieces of ash or dust

Explanation:

Answer:

codominance

Explanation:

Answer:

b option

codominance is correct answer

hope that it will help you

Answer:

the answer is the third one

Answer:

this is assuming brown eyes are dominant

6a 9/16

b.3/16

c 3/16

d. 1/16

Explanation: there might be an easy way to calculate it but I draw it out and use the dominance and lettering and just count I used slide 5 as a starting point

to do more than this would require seeing the square on slide 1 they are referring to as it is specific to 2 parents

4. a Bb and bb

b. bb and bb

5. BBEE BBEe BbEEBbEe

BBEe BBee BbEe Bbee

BbEE BbEe bbEE bbEe

BbEe Bbee bbEe bbee

2 a Bb

b Brown hair

c. Bb and brown hair

d. blonde hair

e. BB

3. A50%

c. 50%

25%

75%

25%

Answer:

1. bronchi

2. diaphragm

Explanation: hope you understand

Answer:

B, D

Explanation:

Answer:

The ultimate aim of bee keeping is to get more and more honey in pure form. The old method commonly used by old apiculture is very crude, cruel and of unplanned type. This old method is called as Indigenous method.

Answer:

The second one, smooth shape is dominant and wrinkled is recessive

Explanation:

Answer:

The answer would be B

Explanation:

The wrinkly pea is recessive meaning it is less likely to pass on its traits.

Answer:

475

Explanation:

The strand is only made up of Adenine, Thymine, Cytosine and Guanine. There will be the same number of Adenine as there are Thymine and the same number of Cytosine as there are Guanine.

We know there are 425 Thymine. This means there are also 425 Adenine. Therefore, you would subtract 850 (425x2) from 1800 to find the amount of Cytosine and Guanine left, which is 950.

Out of the 950, half will be Cytosine and half Guanine. 950/2 is 475.

I think thats because small animals have small body that can hide in a safe place. Like example if small animals hide go down to the earth, and the meteorite hit the earth, they will safe down to the ground.

Not like larger animals, they can only hide up he surface and when the meteorites came, they died.

Also some small animals such as cockroaches have ability to adapt to changes.

Answer: D

Explanation:

Answer:

By the definition of "carrier," Asha does not exhibit any physical features (phenotype) of the Nieman-Pick disease, but she carries an allele for this disease. In order for this to be possible, Asha must carry a autosomal dominant allele for this gene to mask the effects of carrying an allele for the.

Explanation:

By the definition of "carrier," Asha does not exhibit any physical features (phenotype) of the Nieman-Pick disease, but she carries an allele for this disease.

Answer:

a) 0.1 mL

b) contamination

c) clumping of colonies

d) Uneven colonies

Explanation:

In general, when performing spread plates, 0.1 mL

mL of cell suspension is added to the plate to prevent the formation of a microbial contamination

Adding more than 1 mL of cell suspension to an agar plate will result in a clumping of colonies.

Adding less than 1 mL of cell suspension to an agar plate will result in a Uneven colonies

In general, when performing spread plates, 0.1mL of cell

suspension is added to the plate to prevent the formation of a

microbial contamination.

Adding more than 1 mL of cell suspension to an agar plate will

result in a clumping of colonies. Adding less than 1 mL of cell

suspension to an agar plate will result in an uneven colony.

These contain two or more conspecific individuals living in close

association with one another.

The procedures given above must be adhered to in the

preparation of cell cultures in the laboratory.

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Answer:

d) the laws of independent assortment

Explanation:

just took it