Question

Blood of earthworm is red because its haemoglobin is ........... and helps in gaseous exchange.

• A. Intracellular
• B. Intercellular
• C. Oxidised
• D. Reduced

Answer 1

The correct option is B Intercellular

Blood in earthworm and certain other worms is red due to the presence of the protein called as haemoglobin which is dissolved in plasma. The protein is not enclosed in the blood corpuscles like other animals and mammals. The protein is called intercellular because it is present in the liquid called as hemolymph and helps in the exchange of gases.

So, the correct answer is option B.