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Question
Look at this food chain: Grass → Grasshopper → Frog → Snake. If frogs disappear from this ecosystem, what will happen to the population of grasshoppers and snakes? Why?
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Answer
Grasshoppers would increase and snakes would decrease.
Explanation
- Frogs eat grasshoppers, so without frogs, grasshoppers rise.
- Snakes eat frogs, so without frogs, snakes lose their food.
- So the snake population would fall.
- This shows how removing one link upsets the whole chain.
Remove one link and the whole food chain is disturbed.
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