The diagram above shows a food web. What is a food web?

•a diagram that shows evolutionary relationships among organisms
•a diagram that shows feeding relationships between organisms
•a diagram that shows relationships between producers and consumers
•a diagram that shows how matter and energy flow through ecosystems

1) a diagram that shows relationships between producers and consumers

2)  a diagram that shows how matter and energy flow through ecosystems  &

3)  a diagram that shows feeding relationships between organisms

Explanation:

it shows that the consumers eat the producers, that shows relationship.

matter is anything that takes up space, the energy would be the consumers consuming the producers and gaining energy.

Food webs are diagrams that show how matter and energy flow through ecosystems by showing feeding relationships between producers and consumers.

For example, in the given food web, matter and energy flow from grass (a producer) to grasshoppers (a primary consumer) to leopard frogs (a secondary consumer) to copperhead snakes (a tertiary consumer).

Though they are not seen in this diagram, decomposers play a role in every aspect of a food web by recycling waste materials and dead plants and animals back into the ecosystem.