What always occurs when energy moves from one trophic level to the next higher one?

The net primary productivity of the ecosystem declines.

Each species belongs to many food chains.

Predator species have more energy available to them than prey species do.

Most of the energy is lost through biological processes.

The answer is D

Explanation:

Because as the energy travels from one animal to the other the energy decreases. For example a gazelle eats the grass right? And then a lion eats the eats the gazelle. The gazelle got energy from the grass it's body already used some so when it's eaten the lion only gets what energy the gazelle has leftover