4
The living pyramid — how is nature kept in balance?
Words to learn: producer • consumer • predator • food web
A habitat is a network rather than a simple ladder. Plants support many primary consumers, which support fewer predators. If one part changes, the effects can spread through the whole food web.
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Where does this mystery belong?
LIVING THINGS — PAGES 14–17. Protected textbook link/poster to be added.
Who uses this knowledge?
