Question

In which of the following segments are the blood glands of an earthworm present?

(a) 2, 3 and 4

(b) 3, 4 and 5

(c) 4, 5 and 6

(d) 5, 6 and 7

I have been asked this question in quiz.

Question is from Animals in division Structural Organisations in Animals of Biology – Class 11

Answer 1

Right answer is (c) 4, 5 and 6

The explanation is: In earthworm, blood glands are present on the 4^th, 5^th and 6^th segments. They produce blood cells and haemoglobin which is directly dissolved in blood plasma as their blood does not have any respiratory pigment.