A) blue with haemocyanin in corpuscles
B) blue with haemoglobin in corpuscles
C) red with haemoglobin in corpuscles
D) red with haemoglobin in plasma
Correct Answer: D
Solution :
Blood vascular system of Pheretima is closed type. Blood is red due to the presence of respiratory pigment haemoglobin, found dissolved in the plasma. Free amoeboid blood corpuscles are present, but there are no red blood corpuscles.
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