what is coelom ? name 3 types of animal based on coelom
Answers
There are three types of structural body formation present in animals related to coelom:
Acoelomate: Coelom is absent. The blastocoel is completely occupied by mesoderm. ...
Pseudocoelomate: True coelom is not present. The blastocoel is partly filled by mesodermal cells. ...
Eucoelomate: Animals that have a true coelom
Explanation:
The coelom is one of the characteristic features of metazoans. The true coelom is a body cavity formed during embryo development from the three germinal layers. The coelom is lined by mesodermal epithelium cells. Presence or absence of coelom is one of the criteria for classifying animals.
The animal kingdom is divided into three groups on the basis of the nature of coelom.
Animal Kingdom
Acoelomate
(no coelom)
Pseudocoelomate
(false coelom)
Coelomate
(true coelom)
Porifera
Coelenterata
Ctenophora
Platyhelminthes
Aschelminthes Annelida
Arthropoda
Mollusca
Echinodermata
Hemichordata
Chordata