Trophic Levels in an Ecosystem (AQA GCSE Biology): Flashcards
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What are trophic levels?
What are trophic levels?
Stages in a food chain where energy transfers between levels
What are organisms at the first trophic level called?
What are organisms at the first trophic level called?
Producers
Give examples of producers
Give examples of producers
Plants and algae
How do producers make their food?
How do producers make their food?
Through photosynthesis
What are organisms at the second trophic level called?
What are organisms at the second trophic level called?
Primary consumers
What are primary consumers?
What are primary consumers?
Herbivores that feed on producers
What are organisms at the third trophic level called?
What are organisms at the third trophic level called?
Secondary consumers
What are secondary consumers?
What are secondary consumers?
Carnivores that eat primary consumers
What are organisms at the fourth trophic level called?
What are organisms at the fourth trophic level called?
Tertiary consumers
What do tertiary consumers eat?
What do tertiary consumers eat?
Other carnivores (secondary consumers)
What are apex predators?
What are apex predators?
Top of food chain with no natural predators
Give examples of decomposers
Give examples of decomposers
Bacteria and fungi
What is the role of decomposers?
What is the role of decomposers?
Break down dead matter and recycle nutrients into ecosystem
What do decomposers secrete?
What do decomposers secrete?
Enzymes to break down organic material
How do decomposers absorb molecules?
How do decomposers absorb molecules?
Through diffusion