Explain the classification animals on the basis of the type of body cavity present. Use correct ...

Answer to q. 1

The classification of animals according to body cavity pertains only to triploblastic
organisms. Such animals can be classified as follows:Acoelomate
animals lack a body cavity; an example is a flatworm
Pseudocoelomate animals have a body cavity that is found between tissue that develops
from endoderm and tissue that develops from mesoderm; an example is a nematode.
Coelomate animals have a body cavity that is completely lined with tissue that develops
from mesoderm; an example is a dog.

Answer to q. 2

Radial symmetry allows equal distribution of senses around the body rather than concentrating sense organs in one direction. It also allows for equal access to potential food
sources coming from any direction.

I'm still confused, but thanks for answering correctly