Which of the following is a feature of the "tube-within-a-tube" body plan in most animal phyla?A) The outer tube consists of a hard exoskeleton.B) The outer tube consists of digestive organs.C) The mouth

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asked Mar 23, 2024 97.0k views

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Which of the following is a feature of the "tube-within-a-tube" body plan in most animal phyla?A) The outer tube consists of a hard exoskeleton.B) The outer tube consists of digestive organs.C) The mouth and anus form the ends of the inner tube.D) The two "tubes" are separated by tissue that comes from embryonic endoderm.

Biology
high-school

Taapo asked

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Answer: C-the mouth and anus form the ends of the inner tube.

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Jeff Tilton answered Mar 30, 2024

by Jeff Tilton

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