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gtnhenbr [62]
3 years ago
9

When did soft-bodied, multi-celled animals first appear?

Biology
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

Answer: 550 million years ago according to the internet.

Explanation:

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rhizobia is an important nitrogen fixing bacteria found in the soil to help grwo plants like legumes. rhizobia enter into a symbiotic relationship withe legumes

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SO ITS NUMBER 2

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