TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: Fish Reproduction and Development   Nearly all fish reproduce sexually, and most species have separate sexes.

SOLUTION: Most fish reproduce with one another sexually.

PROBLEM: There are three types of passive transport they are diffusion, osmosis and facilitated diffusion.

SOLUTION: Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered a(n) passive type of transport.

PROBLEM: Convection is the rising of hot material and the sinking of cooler material, similar to the process of water boiling.

SOLUTION:
Rises then sinks does deeper material cause convection in the mantle.