Describe a food chain for a temperate forest community that contains at least four links. Use the following organisms: grizzly bears, oak trees, mice, squirrels, deer, robins, foxes, mushrooms, grass plants, and grasshoppers. Identify the level of each organism in the food chain.

Oak trees, grass plants are Producers.

Grasshoppers, deer, mice, and squirrels are Primary consumers, they are eating producers.

Foxes, robins are Secondary consumers, they are eating primary consumers (depending on their nature)

Grizzly bears are Tertiary consumers, they are eating secondary consumers (like snakes)

Mushrooms are decomposer (which decompose, organic material such as remains of dead material)

Producer:Oak trees, grass plants,

Primary consumer: Mice, grasshoppers,

Secondary consumer:Squirrells (depending on they eat), robbins

Third consumer:deer, foxes, grizzly bears.

Decomposer:Mushrooms