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tiny-mole [99]
2 years ago
12

1. Sharks appear.

Biology
1 answer:
ra1l [238]2 years ago
4 0

Answer:

3 1 2

Explanation:

simple organisms apeared first insects would be less complicated than fish the came sharks as they are more complex organisms also insects were first to be food for fish and fish food for sharks

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The correct is D.

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