B14a Organisation of Ecosystems Flashcards
Plants are producers. What does this mean?
They make food by photosynthesis.
What do all food chains start with?
Producer
Plant or algae
Make glucose by photosynthesis
Name the group of organisms that eat the producers
Primary consumers
Name the group of organisms that eat primary consumers
Secondary consumers
Name the producer on this food chain
Algae
What is a tertiary consumer?
Eats a secondary consumer
What is a predator?
Kill and eat other animals
What is the name given to an organism eaten by a predator?
Prey
Describe the pattern of predators and prey in a stable community
The numbers of predators and prey rise and fall in cycles
What do food chains show?
Feeding relationships of different organisms
and the flow of energy between them
Name the primry consumer shown on this food chain
Flies
Name the prey of the snake
Frog
Name the secondary consumer shown on this food chain
Frog
Define biomass
Total mass of all the living material
What do the arrows show in a food chain?
Movement of energy or biomass