The blood pigment in earthworm is ____.

Haemocyanin

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Haematin

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Haemoglobin

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Cyanin

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Solution

The correct option is C Haemoglobin
Like mammals, the presence of hemoglobin in the blood of Pheretima gives it its red color. Hemoglobin is the iron-containing oxygen-carrying pigment in earthworms. But unlike mammals, this hemoglobin is not found in RBCs. Instead, it is found dissolved in the plasma.
So, the correct answer is 'haemoglobin'.

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Name the metal which is a constituent of:

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