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Spongia

spongia

Synonym: sponge.

Origin: G.


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embryonic evolution

There are several theories about how metazoas become. Heckel`s theory that first metazoas were Cnidaria and Spongia derived from colonial flagellata is one of two major theories. He said that ontogeny is recapitulation of filogeny based on the examination of embional stages of ...

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by Beetle
Wed May 04, 2005 11:59 pm
 
Forum: Evolution
Topic: embryonic evolution
Replies: 5
Views: 3774


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