How many primary consumers are there? Which organism would be affected IF the aphids suddenly died? A farmer sprayed a pesticide to kill caterpillars because they were eating crops... How many primary consumers are there? Which organism would be affected IF the aphids suddenly died? A farmer sprayed a pesticide to kill caterpillars because they were eating crops. Which organism will be most affected? Justify your answer. What could happen to the spider population if the caterpillars are killed?
Understand the Problem
The question is asking about the relationships within a food web, specifically focusing on primary consumers and the effects of pesticides on different organisms in that web. It requires an understanding of ecological interactions.
Answer
5 primary consumers. Spider population affected if aphids die. Hedgehog affected by caterpillar loss.
Primary consumers: 5. Aphid death affects Spider. Caterpillar pesticide affects Hedgehog. Spider population may increase if caterpillars die; less competition for aphids.
Answer for screen readers
Primary consumers: 5. Aphid death affects Spider. Caterpillar pesticide affects Hedgehog. Spider population may increase if caterpillars die; less competition for aphids.
More Information
Aphids are a food source for spiders, and caterpillars are eaten by hedgehogs. Removing a food source impacts organisms that rely on it.
Tips
A common mistake is not recognizing that primary consumers are organisms that directly eat producers, like plants.
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