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uysha [10]
3 years ago
13

Why is a biosphere important?

Biology
2 answers:
satela [25.4K]3 years ago
6 0
The biosphere<span> is as </span>important<span> as life itself because it is all of life. Without the </span>biosphere<span>, the Earth would be a lifeless planet such as Mars or Venus. ... The growth of the human population on Earth means there is less room for other species.</span>
blagie [28]3 years ago
6 0
The biosphere keeps the earth alive and creates thing such as plants and oxygen and anything a human needs.
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The volume and mass of the brain has increased about threefold from early human ancestors such as Australopithecus afarensis, to
spin [16.1K]

The question is incomplete as it does not have the options which are:

A. The threefold change happened in one concentrated burst.

B. The change was not consistent in direction, but happened in multiple bursts concentrated at each speciation event.

C. There was consistent directional selection toward a larger brain all along the lineage between the two species.

D. None of the above.

Answer:

Option-B

Explanation:

The hominids evolved with time and the known hominid in modern time is the Homo sapiens or modern human.

The Homo sapiens like other species could have evolved from the older species through speciation and studies suggest that one of the major factors of human evolution is the size of the brain.

Two possibilities could explain the size of the brain that it could have evolved slowly with time called the gradual equilibrium or in bursts concentrated at each speciation event.

Since the punctuated equilibrium takes place in bursts until the species reach stasis is the most applicable condition for punctuated equilibrium to happen therefore Option-B is the correct answer.

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Explanation:it will freeze up

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