A fluid-filled body cavity that forms completely within the mesoderm of animals is a
A) coelom.
B) blastula.
C) pseudocoelom.
D) protostome.
E) deuterostome.

Name: A fluid-filled body cavity that forms completely within the mesoderm of animals is a A) coelom. B) blastula. C) pseudocoelom. D) protostome. E) deuterostome.
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Question

Quizplus · Accepted Answer

Whether a hollow body cavity is present in an animal and the exact nature of any such cavity is very important for classifying animals.

A Fluid-Filled Body Cavity That Forms Completely Within the Mesoderm