Population and ecosystems unit test

Answer 1

1. Define carrying capacity. How does it relate to population growth in an ecosystem?

2. Explain the difference between biotic and abiotic factors in an ecosystem. Give an example of each.

3. Describe the three types of symbiotic relationships that exist in ecosystems.

4. What is the difference between a food chain and a food web? Provide an example of each.

5. Explain how energy flows through an ecosystem, starting with producers and ending with decomposers.

6. Discuss the concept of succession and the two types of succession that can occur in an ecosystem.

7. How do human activities impact ecosystems and the balance of populations within them? Give examples of both positive and negative impacts.

8. Describe the process of natural selection and how it contributes to the evolution of populations within an ecosystem.

9. Why is biodiversity important for the health and stability of an ecosystem? Provide examples of how biodiversity can benefit ecosystems.

10. Discuss the role of keystone species in an ecosystem and explain how their presence or absence can impact the entire ecosystem. Provide examples of keystone species and their importance.