What is a diagram that show amount of energy moves from one feeding level to another in food web?

The diagram that shows the amount of energy that moves from one feeding level to another in a food web is called an energy pyramid. An energy pyramid is a graphical representation of the amount of energy at each trophic level in an ecosystem. It is typically drawn as a series of horizontal bars, with the bottom bar representing the producers (plants), and each successive bar representing the consumers (herbivores, carnivores, etc.). The height of each bar represents the amount of energy available at that trophic level.

Here's an example of an energy pyramid for a simple food web:

```

Producers (Plants)

/ \

/ \

/ \

Herbivores (Animals that eat plants)

/ \

/ \

/ \

Carnivores (Animals that eat other animals)

/ \

/ \

/ \

Apex Predators (Animals that have no predators)

```

In this pyramid, the producers are at the bottom, and the apex predators are at the top. The height of each bar represents the amount of energy available at that trophic level. As you move up the pyramid, the amount of energy decreases, because some of the energy is lost as heat and waste at each trophic level.