Animal Kingdom Question 303

Question: Tube-within-a-Tube body plan is shown by

Options:

A) Coelenterates

B) Platyhelminthes

C) Aschelminthes (Nemethelminthes)

D) Porifers

Show Answer

Answer:

Correct Answer: C

Solution:

In tube-with in a tube plan the body of animal has two tube, one formed by the body wall and second formed within it by the digestive traet.

This type of body plan in found in Aschelminthes upto chordata.