Question

Choose the correct answers from the alternatives given.
Animals that have three layers of embryonic tissue but have organs in a cavity that is not completely lined with mesoderm are:

• A. acoelomate
• B. eucoelomate
• C. pseudocoelomate
• D. coelomate

Answer 1

The correct option is C pseudocoelomate

Pseudocoelomate animals have a pseudocoelom (literally “false cavity”), which is a fluid-filled body cavity. A pseudocoelomate is an organism with a body cavity that is not derived from the mesoderm, as in a true coelom, or body cavity. A pseudocoelomate is also known as a blastocoelomate, as the body cavity is derived from the blastocoel, or cavity within the embryo.

So, the correct option is, 'pseudocoelomate'.