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Which Of The Following Groups Of Animals Do Not Possess A Nervous System? - Erudites Academy

A. Porifera
B. Cnidaria
C. Platyheminthes
D. Nematoda

Correct Answer: Option A

A. Porifera

Explanation

Porifera are ‘pore bearing’ organisms, commonly known as sponges, are the only multicellular organisms without a nervous system. Their response to stimuli is by a contraction in their bodies.

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