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Andre45 [30]
3 years ago
15

Modern humans first appeared during the

Biology
2 answers:
stira [4]3 years ago
4 0
A. Most recent period of the Cenozoic era. 


ratelena [41]3 years ago
4 0

Answer:

The correct answer is A) most recent period of the Cenozoic era.

Explanation:

Modern humans belong to a species called Homo sapiens that first appeared approximately 200.000 years ago. The Cenozoic era is the latest, made of two periods (tertiary and quaternary) where the latest is the quaternary that goes from 1,8 to 0,01 million years.

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The reason why the small intestine is longer than the large intestine and any other part of the digestive system is to ensure maximum and complete absorption of nutrients to the blood stream.

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