Trophic Levels.

https://www.revisely.com/gcse/biology/aqa/video/Qxi

Whats a tertiary consumer

A carnivore that eats other carnivores, scientists call positions on a food chain trophic levels,

Trophic means feeding.

Explain trophic levels in food chains

Producers are trophic level 1, primary consumers trophic level 2, seondary consumers trophic level 3 and tertiary consumers trophic level 4.

Whats an apex predator

A predator that eats and hunts other animals, and is not preyed upon by other predators,

They are carnivores with no predators.

Why are decomposers important in eco system

They break own dead remains and waste products, and return mineral ions back to the soil. In order to carry out this break down, they secrrete enzymes into the environment. The enzymes digest the dead material, and the small soluble food molecules then diffuse back into the decomposer.