Echinoderms are headless,brainless,and heartl | vedclass

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(A) Echinoderms are considered the most advanced invertebrates because they share certain developmental characteristics with chordates.Specifically,th

Vedclass · Accepted Answer

Enterocoel

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(A) Echinoderms are considered the most advanced invertebrates because they share certain developmental characteristics with chordates.Specifically,they possess an $Enterocoel$,which is a body cavity formed from the outpocketing of the embryonic gut (archenteron),similar to the process seen in chordates.This $Enterocoelous$ development is a significant evolutionary feature that places them at the top of the invertebrate hierarchy.

Echinoderms are headless,brainless,and heartless. Yet,they are placed at the top of invertebrates because of the presence of:

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