trophic levels

What are trophic levels

The different stages of a food chain

How many trophic levels are there and what organisms are on each trophic level

4 trophic levels

Trophic 1- producer(plant) starts the food chain and makes their own food by photosynthesis using energy from sun

trophic 2 - primary consumers, herbivores that eat plants and algae (the producer)

Trophic 3- secondary consumers, carnivores that eat primary consumers so are meat eaters

Trophic 4- tertiary consumers carnivores that eat other carnivores (secondary consumers) Tertiary consumers have no longer reactors and are at the top of food chain and is also known as apex predators

What is the role of decomposers

Decomposers such as bacteria and fungi play an important role in ecosystems.

They decompose any dead plants or animal materials left in the environment they can do this by secreting enzymes that break the dead stuff down into small soluble food molecules.

These then diffuse into the microorganisms. This process also releases nutrients into the environment which the producers need in order to grow.

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