1.

X= Arthropods, Y = Mollusca, z = Coelenterates :-If the X by using Y, lives benifical life with z, then which of the following is correct example ?

A. X = cockroachY = pearl oyester Z = Hydra
B. X = Millipede Y = pila Z = jellyfish
C. X = Hermit crab Y = Gastropoda Z = sea anenone
D. All of these
Answer» D. All of these


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