Root hairs absorb nutrients from soil against the nutrient concentration gradient. to achieve this, root hairs use _____.

Answers

Answer 1

Answer:

Root hairs absorb nutrients from soil against the nutrient concentration gradient. To achieve this, root hairs use - proton pumps.

Root hairs are long tube shape outgrowths from root epidermal cells. These are also called absorbent cells as they absorb water and nutrients from the soil.

Nutrients are absorbed by the root hairs by a proton pump.
This proton pump builds up a proton gradient across a biological membrane.
Proton pumps catalyze the following reaction: H+ + energy ⇌ H +

Thus, Root hairsabsorbnutrients from soil against the nutrient concentration gradient. To achieve this, root hairs use - proton pumps.

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Answer 2

Answer:

Root hairs absorb nutrients from soil against the nutrient concentration gradient. To achieve this, root hairs use proton pumps.

Hope this helps,

Davinia.

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A scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clock data show?Clams and squid have been evolving separately for a longer time than clams and snails.
Clams and squid have been evolving separately for a shorter time than clams and snails.
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Answers

Answer:

The correct answer is the second statement.

Explanation:

The molecular clock refers to a procedure in molecular evolution that associate the time of divergence between the two species with the number of molecular differences determined between the sequences of DNA or proteins.

The more genetically associated, the shorter will be the separation time between the two species. Due to this, as clams and squid are more closely associated it can be concluded that these species look more genetically identical, and have evolved distinctly for a brief time duration in comparison to the clams and snails.

Answer:

B. Clams and squid have been evolving separately for a shorter time than clams and snails.

Explanation:

Edge 2021

every living thing needs a set of instructions that are necessary to live and grow. Where are these instructions found?

Answers

It is true that every living thing in the world needs a set of instructions to live and grow. However, these are not paper instructions or instructions that are given by others. The instructions for every living thing is located inside the cell. Inside the nucleus of the cell, to be exact. They tell each cell what role they have in a persons body. It also is known as DNA.

What would happen to skin cells if mitosis did not take place?

Answers

Answer:

If mitosis would not take place, the life of the organism would become short.

This is because mitosis ( a process of cell division where parent cell forms two identical daughter cells) helps in the the renewal of damaged/ dead cells.

For instance, in case of skin epidermis ( outer layer of skin), the cells that become dead, keep on renewing ( as they shed/ fall off on continuous basis) with the help of mitosis.

Thus, if no mitosis would occur, there would be no renewal of the dead cells and the life will be shorten.

You could die mitosis has to work in order for your cells to live

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Answers

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Answers

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Answers

Answer:

The answer is "Anaphase I".

It depends if you are in Metaphase I which I am assuming you are. So here, homologous chromosomes pair up and line up independently at the metaphase plate (equator) and independent assortment/random alignment occurs which leads to genetic variation

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