You are given a sentence and your task is to generate another sentence that supports the given input.

Fish Reproduction and Development   Nearly all fish reproduce sexually, and most species have separate sexes.
Most fish reproduce with one another sexually.

A spring is any natural situation where water flows from an aquifer to the earth's surface.
You call water that flows out of the ground where an aquifer meets the surface a(n) spring.

All      the organisms that can not make their own food (and need producers) are called heterotrophs .

Because all animals require an external source of food, they are called heterotrophic.