If a live earthworm is pricked with a ne...

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

excretory fluid

coelomic fluid

haemolymph

slimy mucus

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The correct Answer is:

The body cavity of earthworm is true coelom (schizocoel) as it is formed by the division of mesoderm. Thecoelom is filled with milky alkaline coelomic fluid, which contains different type of corpuscles, thus, if alive earthworm is prickled with a needle on its outer surface, the coelomic fluid will come out.

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