Question

what is the difference between acoelomate,pseudocoelomate and eucoelomate ?

Answer 1

Answer :

Body Coelom :

The cavity between the body and internal organs is called Body Cavity or Coelom.

For multicellular animals,during initial period of their embryonic development, the body cavity is formed either from mesoderm or gut. Such cavity is present in animals of Phylum Annelida. Such animals are called Eucoelomate. [ Animals with true body cavity ]

In some multi cellular animals, the body cavity is absent. They are known as acoelomate. Example - Porifera, Cnidaria, Platyhelminthes

In aschelminthes, the body cavity is formed in a different way than normal, those animals are called Pseudoceolomate.

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Answer 2

$\textbf{\huge{ANSWER:}}$

What is Coelom?
$\sf{Coelom}$ is the body cavity present in the organisms (mainly from the kingdom $\tt{Animalia}$).

$\sf{Acoelomate}$

■The organisms in which the coelom is isn't present are called the $\tt{Acoelomates.}$
Examples:- $\textbf{Platyhelminthes, Coelenterata}$

$\sf{Pseudocoelom}$

■The organisms in which there is a false coelom are called the $\tt{Pseudocoelomates}$.
Examples:- $\textbf{Nematodes}$

$\sf{Eucoelomate}$

■The organisms in which there is a true coelom are called the $\tt{Eucoelomates}$.
Examples:- $\textbf{Annelida, Mollusca, Arthropoda}$