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Simora [160]
3 years ago
12

Below is a hypothesis about why male white-crowned sparrows sing dialects.

Biology
1 answer:
Marina86 [1]3 years ago
5 0

Answer:

The answer is an adaptive value explanation.

Explanation:

Adaptive value is the effect that the behavior of an organism has on the reproductive fitness of the organism.

This can help offspring to cope with their new surrounding or condition.

It is a quantity that can be measured by contribution of an organism to the gene pool of their offspring. This measurement can be releasing of chemicals to avoid predators, sexual mimicry by some animals or trying to imitate so as mix with others.

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Answer:

A gas-powered lawn mower is a complex machine because for it to function it does more than one motion. For example, it has a wheel and axle system so it can move when powered. And it has a system of simple machines and other parts that are put together to accomplish the task of cutting grass.

Explanation:

6 0
3 years ago
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x or y because both can cause it

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Scientists have a great deal of responsibility. Why is it important for scientists to communicate their results accurately to pe
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3 years ago
What is the savanna hypothesis? Group of answer choices Bipedalism was selectively favored because it helped our ancestors to st
Gnom [1K]

Answer:

Both options are valid, since in the hypothesis of the savanna it was argued that humans acquired bipedalism to be able to self-supply their food more effectively, and to have less body surface area exposed to the sun.

Explanation:

The saban hypothesis is believed to have originated in the saban, with the Austrolopitecus africanus being forced to affect this domain, which is why it acquired this adaptation mechanism.

The savanna had high grasslands, which also led to collaboration in this regard since they could be better camouflaged.

In addition, the human began to defend with the limbs of the upper limb, triggering the canines to decrease in size since it is not used as a defense mechanism.

The canine is a tooth that helps to tear carnivorous food, that is why the human also begins to have a more varied diet of fruits and seeds and that it can reach and take the bones of the tree to increase its height due to bipedalism.

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3 years ago
The process by which green plants make food is called
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