Haemoglobin and blood cells are formed in Earthworm from
A
Lateral hearts
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B
Laterocesophageal hearts
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C
Blood glands
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D
Ventral blood vessel
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Solution
The correct option is B Blood glands Pheretima exhibits a closed type of blood vascular system, consisting of blood vessels, capillaries, and heart. Blood glands are present on the 4th, 5th and 6th segments. They produce cells and hemoglobin which is dissolved in blood plasma. Blood cells are phagocytic in nature.