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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS

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Which of the following statements are incorrect in reference to the blood vascular system of the earthworm?
I. Blood vascular system is of open type
II. Smaller blood vessels supply the gut, nerve cord and the body wall
III. Blood glands are present on 6th 7th and 8th segment
IV. Blood cells are phagocytotic in nature

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Correct option: C

I and III

Option C (I and III) is correct because the blood vascular system in earthworms is closed, not open, and blood glands are located on the 4th, 5th, and 6th segments, not the 6th, 7th, and 8th.

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