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svet-max [94.6K]
3 years ago
10

The beginning of the phanerozoic is marked by the ________.

Biology
1 answer:
jek_recluse [69]3 years ago
7 0
Development of hard body parts, such as shells and bones
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1: sustainability is an avoidance of the depletion of natural resources in order to maintain an ecological balance.

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hope it helps you!

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