Classify animals on the basis of body cavity or coelom.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

On the basis of body cavity or coelom animals are grouped into:

i. Acoelomates: These animals do not posses any coelom as the space between the body wall and the digestive tract is filled with parenchymatous tissue.

ii. Pseudocoelomate: The organisms of this group have a coelom but this coelom does not arise from the mesoderm and is not lined by epithelial cells.

iii. Coelomates: The organisms of this group have a true coelom which originates from the mesoderm and lined by epithelial cells of mesodermal origin.

Answered by  | 4th Jun, 2014, 03:23: PM