Which is not correct for sponges?

Options

A. Internal fertilisation
B. External fertilisation
C. Gemmule formation
D. Gametes are formed from epidermal cells

Answer

B

Explanation

In sponges, sexes are not separate (hermaphrodite), i.e., eggs and sperms are produced by the same individuals. Sperms leave one sponge and enter another with water current to fertilise the ova (eggs) in situ. Thus, fertilisation is internal.