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The given figures shown a cross section ...

The given figures shown a cross section of the body of an invertebrate. Identify the animal which has such body plan.

A

Cockroach (Arthropoda)

B

Poundworm (Aschelminthes)

C

Planaria (Platyhelminthes)

D

Earthworm (Annelida)

Text Solution

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The correct Answer is:
C
The animals in which the coelom is absent are called acoelomates, for examples flatworms (Planaria). In them the space between ectoderm and endoderm is filled with parenchyma derived from mesoderm.
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