First slide

Classification of Animals

Question

Which of the following is not the character phylum Mollusca?

Easy

A

Body is covered by a calcareous shell.
B

The anterior head region has sensory tentacles.
C

Body is unsegmented with a distinct head, muscular foot and visceral hump
D

Molluscans are bilaterally symmetrical, triploblastic pseudocoelomates.

Solution

Molluscans are bilaterally symmetrical, triploblastic and coelomate animals.
In Molluscans, body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
In Molluscans, the anterior head region has sensory tentacles.

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