NEET BIOLOGY

REPRODUCTION

EMBRYONIC DEVELOPMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of animal has no body cavity?
A
Acoelomate
B
Pseudocoelomate
C
Coelomate
D
None of the above
Explanation: 

Detailed explanation-1: -Among the acoelomate phyla, the members of Platyhelminthes (flatworms ) have no body cavity, and the space between the gut and the body wall, when present, is filled with a spongy organ tissue of mesodermal cells through which tissue fluids may percolate.

Detailed explanation-2: -Acoelomate animals, like flatworms, have no body cavity at all. Organs have direct contact with the epithelium.

Detailed explanation-3: -Also, the absence of body cavities does not signify the absence of fluid currents in the body. Platyhelminthes and sponges are classic examples of acoelomates.

Detailed explanation-4: -Solution : Platyhelminthes is acoelomate while echinodermata and chordata are coelomates.

There is 1 question to complete.