Classify the following organisms based on the absence/presence of true coelom (i.e. acoelomate, pseudocoelomate and coelomate)

Spongilla, Sea anemone


Planaria, Liver fluke


Wuchereria, Ascaris


Nereis, Scorpion


Earthworm, Birds


Fishes, Horse

Coelom is the main body cavity in most multi cellular animals and it contains digestive tract and other organs.


Examples- Nereis, Scorpion, Earthworm, Birds, Fishes, Horse


Pseudocoelomate are animals without true coelom.


Examples- Wuchereria, Ascaris


Acoelomate does not possess a body cavity.


Examples- Spongilla, Sea anemone, Planaria, Liver fluke


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