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serious [3.7K]
2 years ago
13

Mammals first appeared during the Cenozoic Era. true or false

Biology
2 answers:
anastassius [24]2 years ago
8 0
<span>Mammals first appeared during the Cenozoic Era. The statement is true.</span>
shutvik [7]2 years ago
3 0

Answer:

it is true because mammals arrived before humans in the Cenozoic Era

Explanation:

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<em>The correct option is B) 5-10%</em>

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