Question

Which is absent in coelomic fluid of earthworm?

• A. Proteins
• B. Corpuscles
• C. Haemoglobin
• D. Salts

Answer 1

The correct option is C Haemoglobin

The blood of Pheretima is red coloured due to the presence of respiratory pigment haemoglobin in it. The haemoglobin is not contained in the corpuscles like the vertebrates but it is found dissolved in the plasma. The plasma also contains many corpuscles which are colourless and nucleated.

Haemoglobin is absent in coelomic fluid of earthworm.

So the correct answer is 'Haemoglobin'.