FOOD CHAINS part 2

Animals and plants are linked by food chains

Animals get energy and nutrients by eating other animals or plants.
For example

• caterpillars eat leaves
• mice eat caterpillars
• owls eat mice

These links between animals and plants are called food chains.
The arrow means 'is eaten by'.
Nearly all food chains start with a green plant.
Most animals and plants are part of more than one food chain.

Changes to food chains

If one part of a food chain alters, the whole food chain is affected. For example, if a disease suddenly wiped out caterpillars, it would affect mice, owls and many other animals.

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