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Humans first appeared in the _____ period. A) Mesozoic B) Paleozoic C) Jurassic D) Cenozoic
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Humans first appeared in the _____ period.

A) Mesozoic
B) Paleozoic
C) Jurassic
D) Cenozoic

User Utpal Kumar
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4 votes

Answer:

A or b I learned this in history

User Nicola Ambrosetti
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Answer:

They first appeared in the fossil record around 66 million years ago, soon after the Cretaceous–Paleogene extinction event that eliminated about three-quarters of plant and animal species on Earth, including most dinosaurs.

Step-by-step explanation:

User Ken Williams
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