Question

how is external fertilization possible in oviparous animals as they lay eggs which have future young ones in it ?? If external fertilization was taking place then the offspring will form in external medium... then how can the mother lay eggs with offspring in it ??

Answer 1

After the sperm reaches the egg, fertilization can then take place. Most external fertilization happens during the process of spawning where one or several females release their eggs and the male(s) release sperm in the same area, at the same time. ... This allows the female to select a particular male.