NEET BIOLOGY

Detailed explanation-1: -The methods of reproduction in fishes are varied, but most fishes lay a large number of small eggs, fertilized and scattered outside of the body. The eggs of pelagic fishes usually remain suspended in the open water. Many shore and freshwater fishes lay eggs on the bottom or among plants.

Detailed explanation-2: -Fish reproduce by bearing live young or by laying eggs. Livebearers give birth to fully formed and functional young called fry. The eggs are fertilized and hatch within the female.

Detailed explanation-3: -In the springtime, the female lays up to 250 eggs near the bottoms of rivers and lakes. The male guards and fans the eggs. After about a month, the eggs hatch and the young begin to swim.

Detailed explanation-4: -Egg buriers either dive into soft substrate or the male pushes the female into the soft substrate to lay. The male then dives in to fertilize the eggs.