A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: E
Solution :
In contrast to annelids, The arthropods have a much reduced coelomic cavity. The space between the gut and body wall is mostly occupied by muscles and organs with blood containing interspaces. These spaces together from the haemocoel, which is not a true coelom as it is not lined by the mesodermal epithelium. However, greatly reduced true coelom exists in the from of a number of separate spaces, such as enclosing the excretory (nephrocoel) and genital organs (gonocoel).
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