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Chapter 53 Review
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List the different types of defenses that animals have developed to avoid predation and briefly explain
each.
What are the two hypotheses to describe why species in habit an area? Who developed each? Explain how
each hypothesis accounts for the organisms that live in the same area.
List the defenses that plants have developed to avoid herbivory.
Create a flashcard for each of the types of population interactions (for example, mutualism). On the back,
explain who benefits from the relationship, who is harmed, and give an example from nature.
What is the difference between a keystone species and a dominant species. How are they determined?
Give an example of each.
Create a small food web. Include three producers, three 1 consumers, two 2consumers, and two 3
consumers. Label each organism’s trophic level.
Give two explanations as to why food chains do not often have more than five links.
Explain the difference between primary and secondary succession. Give an example of each.
What is the intermediate disturbance hypothesis and how does it affect species diversity?
Explain the equatorial-polar gradient. Why is it observable?
Chapter 53 Review
1. List the different types of defenses that animals have developed to avoid predation and briefly explain
each.
2. What are the two hypotheses to describe why species in habit an area? Who developed each? Explain how
each hypothesis accounts for the organisms that live in the same area.
3. List the defenses that plants have developed to avoid herbivory.
4. Create a flashcard for each of the types of population interactions (for example, mutualism). On the back,
explain who benefits from the relationship, who is harmed, and give an example from nature.
5. What is the difference between a keystone species and a dominant species. How are they determined?
Give an example of each.
6. Create a small food web. Include three producers, three 1 consumers, two 2consumers, and two 3
consumers. Label each organism’s trophic level.
7. Give two explanations as to why food chains do not often have more than five links.
8. Explain the difference between primary and secondary succession. Give an example of each.
9. What is the intermediate disturbance hypothesis and how does it affect species diversity?
10. Explain the equatorial-polar gradient. Why is it observable?