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What are the three major developmental advancements of the earthworm?
Wiki User
∙ 15y ago
1. the most significant development in earthworms probably is the appearance of the anus.
2. earthworms' nerve cords are also significantly developed.
3. the last one is the development of coelom, which is a new body cavity for organs like heart, lungs, etc..
Wiki User
∙ 15y ago
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