The coelom is a cavity lined by:
Correct answer: A. Mesoderm
- A. Mesoderm
- B. Epiderm
- C. Endoderm
- D. Ectoderm
Explanation
The coelom is a fluid-filled cavity which is lined by the mesoderm. It is present in between the gastrointestinal tract and the body wall. An organism that has a fluid filled cavity lined by the mesoderm are called coelomates.Roundworms have a cavity which is not lined by the mesoderm, thus they are known as pseudocoelomates. Those organisms that lack a fluid filled cavity are called acoelomates.
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