Energy in ecosystems
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10 Terms
Where does most energy in an ecosystem originally come from?
The Sun.
What is a producer?
An organism that makes its own food, usually through photosynthesis.
Give 3 examples of producers.
Grass, trees and algae.
What is a consumer?
An organism that gets energy by eating other organisms.
What is a primary consumer?
An organism that eats producers, usually a herbivore.
What is a secondary consumer?
An organism that eats primary consumers.
What is a tertiary consumer?
An organism that eats secondary consumers.
What is a decomposer?
An organism that breaks down dead organisms and waste.
Give 2 examples of decomposers.
Fungi and bacteria.
What is the basic energy pathway in an ecosystem?
Sun → producers → consumers → decomposers.