Organisation of an Ecosystem (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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Practise the cards
15 cards from this deck
What food chains show
What food chains show
How energy transfers from one organism to another
Definition of producers
Definition of producers
Organisms that make their own food via photosynthesis
Typical examples of producers
Typical examples of producers
Green plants or algae
Energy conversion by producers
Energy conversion by producers
Light energy → chemical energy (glucose)
Definition of primary consumers
Definition of primary consumers
Herbivores that eat producers
Definition of secondary consumers
Definition of secondary consumers
Carnivores that eat primary consumers
Definition of prey
Definition of prey
Animals that are eaten
Definition of predators
Definition of predators
Animals that hunt and eat other animals
Definition of tertiary consumers
Definition of tertiary consumers
Higher-level carnivores that eat secondary consumers
Definition of apex predators
Definition of apex predators
Top predators with no natural predators
What transects are
What transects are
Lines for taking samples at regular intervals
What quadrats are
What quadrats are
Square frames isolating a standard area for study
Definition of distribution (ecology)
Definition of distribution (ecology)
Where organisms are found
Definition of abundance (ecology)
Definition of abundance (ecology)
How many organisms there are
Predator-prey population cycle pattern
Predator-prey population cycle pattern
Prey↑→Predator↑→Prey↓→Predator↓→cycle repeats