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andre [41]
3 years ago
10

What evolutionary changes were essential to the development of complex body plans?

Biology
1 answer:
andrezito [222]3 years ago
3 0

The answer is C. This was achieved through gene regulatory networks. The ability of the cells to segment and differentiate gave the metazoans a great advantage. This is thought to have begun in the Cambrian period with complete bodies existing by the Paleozoic era.






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