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ElenaW [278]
3 years ago
15

A/An _______ exists when different concentrations of a substance exist on either side of a membrane.

Biology
1 answer:
Alecsey [184]3 years ago
4 0

Answer:It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations  

So i believe the answer to this is A.

Explanation:

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What you observe when examining the onion root tip using the low-power lens
bezimeni [28]

Explanation:

Low power objective shows more field of view but does not give appreciable details about the view.

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  • The nucleus stands out appreciably and it is tiny.
  • The cytoplasm is also visible.
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Hybridization _____.
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Answer:

The correct answer is: c) usually produces offspring that cannot reproduce.

Explanation:

Hybridization, also knowns as selective breeding, is an <u>artificial process</u><u> that involves selecting parents with specific characteristics in order to obtain an offspring with the same traits</u>.

Hybridization is very common and has been performed by humans for thousands of years: from selective breeding crop plants, to do so with dogs in order to create more desirable breeds.

Option A is incorrect because hybridation does not occur in nature, it is an artificial process.

Option B is incorrect because hybridation often happens when the selected parents are chosen to reproduce (by a human).

Option D is correct because an important amount of hybrids are sterile (for example: mules).

Option D is incorrect as well because the offspring is not identical: it shares a combination of genes from both parents.

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3 years ago
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Give two examples each of leaves and stems which we eat as food​
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Answer:

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Can you help me with this question?
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Answer:

c

Explanation:

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THE CONDENSATION IN THE AIR apears on the can

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Explanation:

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