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vova2212 [387]
2 years ago
5

Explain how the pressure-flow model can result in "two-way" movement of organic molecules in a plant.

Biology
1 answer:
ycow [4]2 years ago
6 0
<span>Sugars are actively loaded into companion cells from photosynthetic cells. This uses a proton/sucrose code transport proteins. This causes the Phloem to become hypertonic leading to the entry of water via osmosis. This increases turgor pressure, propelling the sugars through the plant. Then the sugar enters into the sink cells causing the phloem cells to become hypotonic, causing water to exit.</span>
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Explanation:

Mimicry: When a weaker animal copies stronger animals' characteristics to warn off predators.

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Review -
Nina [5.8K]

Answer:

A. Survive environmental changes.

Explanation:

Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.

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Simply stated, natural selection entails the survival of the fittest. Therefore, the species that are able to adapt to the environment will increase in number while the ones who can't adapt will die and go into extinction.

The characteristics which are consistent with the concept of natural selection includes;

I. More offspring are produced than can survive in an environment (overproduction of offspring). This ultimately implies that, the more offsprings that are reproduced by the parent organism, the more likely are they to survive.

II. There is genetic variation within populations. This simply means that there is a better chance of having good or beneficial traits being passed from the parent organism to her offsprings.

III. Organisms with beneficial variations are more likely to survive and reproduce, as well as passing on their genes to subsequent generations.

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There exists the same question that has the following choices.

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</span>
The correct answer is letter <span>b. Multiple processing steps can be avoided.</span>
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Answer:

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Explanation:

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