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)  

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: