If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is (a) coelomic fluid (b) haemolymph (c) slimy mucus (d) excretory fluid.
Option A Coelom or body cavity of earthworm is filled with coelomic fluid. It lies between body wall and alimentary canal. So if a live earthworm is pricked with a needle on its outer surface without damaging the gut then only coelomic fluid will come out.
