B17 - Organising an Ecosystem Flashcards Preview

AQA GCSE Biology > B17 - Organising an Ecosystem > Flashcards

Flashcards in B17 - Organising an Ecosystem Deck (6)
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1
Q

What are the producers for the biomass on Earth?

A

Photosynthetic organisms

2
Q

What happens to the number of prey and predators in a stable community?

A

rise and fall in cycles

3
Q

D. Decomposer?

A

An organism that breaks down the waste of plants and animals

4
Q

Carbon cycle?

A

returns carbon from organisms to the atmosphere as carbon dioxide to be used by plants in photosynthesis

5
Q

E. Combustion?

A

fossil fuel or wood + oxygen –> carbon dioxide + water

6
Q

Order of feeding relationship?

4

A

Producer
Primary consumer
Secondary consumer
Tertiary consumer