NEET 2009 Biology question

If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is:

(1)coelomic fluidCorrect
(2)haemolymph
(3)slimy mucus
(4)excretory fluid

Answer: (1)

Solution

An earthworm is a true coelomate; the body wall encloses a fluid-filled body cavity (coelom) containing coelomic fluid. Pricking the body surface without damaging the gut ruptures the body wall (and the coelom), so coelomic fluid comes out (it can also be

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Question ID VK-090203