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Art [367]
2 years ago
7

Which one of the following criteria is necessary for natural selection to occur?

Biology
1 answer:
horrorfan [7]2 years ago
3 0

Answer:

B

Explanation:

B: Differential survival and reproduction

change enviroment causes natural selection

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The wind is just strong enough to move the sand grains which were sorted by size by the wind. Heavier grains were left in place where as smaller grains were carried away. These grains kept moving till they were concentrated in one place usually up a hill. The grains climb the flat slope on the windward side and then fall off the steep side. The dunes may migrate slowly as this process continues, the grains at the upwind side climb the dune with the help of the wind and then fall down the downwind side.<span>
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How do you get DNA from victims or criminals?
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Explanation:

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ANEK [815]
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He peppered moth provides a well-known example of natural selection. the light-colored form of the moth was predominant in engla
mixas84 [53]
The reason for the loss of color after the industrial revolution is that the light-colored moths were "selected against" by predators. These birds could only see the light ones against the newly dark, sooted background. Over time, these predators could no longer distinguish the dark ones from their natural dark, sooted background. Thus more light-colored moths stood out against the dark soot, and were eaten. And more dark-colored moths eluded the birds, survived to reproduce, passing on more of their dominant genes for dark color to their offspring. After several decades of hundreds of thousands of generations, most of the later generations were dark, due to selective advantage of camouflage to survive predation.
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A member of the health care team is researching the etiology and pathogenesis of a number of clients who are under his care in a
hram777 [196]

Answer:

The correct answer is B. A client who has increasing serum ammonia levels due to liver cirrhosis

Explanation:

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