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Q.
In which of the following animals, haemocyanin pigment is found?
AIPMTAIPMT 2001Animal Kingdom
Solution:
In molluscs, blood often has a copper- containing, blue respiratory pigment called haemocyanin. In insects, the blood called haemolymph is colourless. In echinodermates, blood is colourless as it has no respiratory pigment. In annelids, the blood is red with haemoglobin dissolved in plasma.