First slide

Classification of Animals

Question

Haemocyanin is found in the blood of

Easy

A

Insects
B

Earthworms
C

Molluscs
D

Lancelets

Solution

Haemocyanin is the respiratory pigment in molluscs and some arthropods (e.g. prawns). Insects lack a respiratory pigment. Tracheal system carries atmospheric oxygen directly to the tissues.

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