3.17 Trophic Levels

Question 1

What are trophic levels?

Answer 1

The different levels of a food chain

Question 2

What is trophic level 1?

Answer 2

Producer

Question 3

What is trophic level 2?

Answer 3

Primary consumer

Question 4

What is trophic level 3?

Answer 4

Secondary consumer

Question 5

What is trophic level 4?

Answer 5

Tertiary consumer

Question 6

What is the general rule about the amount of energy that is passed on to each trophic level?

Answer 6

10% of energy is passed on to

Question 7

What are the carnivores at the top of trophic levels called?

Answer 7

Apex predators

Question 8

What are the three groups of organisms that don’t fit into trophic levels?

Answer 8

• Omnivores
• Detritivores
• Decomposers

Question 9

What do detritivores and decomposers do?

Answer 9

They decompose the dead plant and animal matter in the environment. This allows them to recycle nutrients from animals and plants back into the ground, which can then be used again by producers.

Question 10

What do the arrows in a food chain show?

Answer 10

The transfer of energy & biomass

Question 11

Small animals like worms and woodlice that help to break down organic matter into smaller pieces are known as:

Answer 11

Detritivores