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Question

In 4th, 5th and 6th segments of Earthworm, lying above the pharyngeal mass and connected with pharyngeal glands are found small, red coloured follicular bodies called

A
Septal glands
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B
Blood glands
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C
Salivary glands
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D
Nephridia
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E
Intestinal caecae
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Solution

The correct option is B Blood glands
Due to the closed circulatory system, blood is confined to the heart and blood vessels. Contractions keep circulating in one direction. Smaller blood vessels supply the gut, nerve cord, and the body wall. Blood glands are present on the 4th,5th and 6th segments. They produce blood cells and haemoglobin which is dissolved in blood plasma. Blood cells are phagocytic in nature.
So the correct answer is 'Blood glands'.

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