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fenix001 [56]
3 years ago
6

According to Darwin's theory of evolution, what causes a struggle for survival in populations?

Biology
1 answer:
yarga [219]3 years ago
4 0

Answer:

In a population, more individuals are born than can survive. The available resources in nature are finite (food, water, space, etc.) and the environment is not able to support unlimited growth of a population. This causes an inevitable struggle for existence among individuals (continual struggle for existence).

Explanation:

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if a population of oak trees has acorns with a circumference most commonly occurring at 2cm, what would you expect the most comm
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The most common circumference to be expected in this situation is 2 cm.

Since it is given that the original population of oak trees contains acorns with the most common circumference of 2 cm, thus, the same circumference will be favored after 15 generations of stabilizing selection.

Stabilizing selection occurs when natural selection results in stabilization i.e. large number of individuals attain mean or average value for a particular trait. In this process, phenotypes of medium-sized individuals are favored through natural selection.

Since it is already mentioned that the mean circumference is 2 cm in the original population thus the same value will be expected after 15 generations of stabilizing selection.

To learn more about stabilizing selection here

brainly.com/question/9617770

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