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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 consi…

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 consi…
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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.

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

Step-by-step explanation:

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User Jeff Tilton
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