First slide

Classification of Animals

Question

Which of the following option includes correct examples each for animals with chitinous exoskeleton and those covered by a calcareous shell respectively?

Moderate

A

Locusta and octopus
B

Apis and slugs
C

Pheretima and Dentalium
D

Butterfly and Pinctada

Solution

Butterfly (Arthropoda) has chitinous exoskeleton and Pinctada (Mollusca) has calcareous shell.
Pheretima (Annelida) lacks chitinous exoskeleton.
Slugs and octopus are shell less Molluscs.

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