Which of the following is a feature of the digestive tube 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.

Question

Quizplus · Accepted Answer

The digestive tube in most animal phyla features a mouth at one end and an anus at the other, forming the ends of the inner tube through which food enters and exits the body. This arrangement allows for a more efficient digestion process compared to a single opening serving both as mouth and anus.

Which of the Following Is a Feature of the Digestive