Question

Blood glands of Earthworm occur in segments ________.

• A. 4-6
• B. 14-16
• C. 22-26
• D. 7,9, 12 and 13

Answer 1

The correct option is A 4-6

Answer is option A i.e. "4-6"

Earthworms show a closed blood vascular system. The 4^th, 5^th and 6^th segments have the blood glands. They produce the blood cells and hemoglobin. These glands are analogous to red bone marrow of vertebrates.