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Alecsey [184]
3 years ago
7

During which era in earth's history were the first insects?

Biology
1 answer:
nordsb [41]3 years ago
6 0
According to the evolution theory, the first insects appeared about 400 million years BC in the Devonian Period. 
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5 0
3 years ago
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sukhopar [10]

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the pain he feels when he is hungry

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