Species Coexistence Worksheet
This worksheet explores the principles and mechanisms of species coexistence in ecological communities, including competition, predation, and mutualism.
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Species Coexistence Worksheet
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Read each question carefully and provide thoughtful, detailed answers. For multiple-choice questions, select the best option. For fill-in-the-blanks, complete the sentence with the correct term. For short answer questions, use complete sentences and provide scientific explanations.
1. Which of the following best describes the principle of competitive exclusion?
Two species with identical niches cannot coexist indefinitely.
Predator and prey populations fluctuate in predictable cycles.
Species diversity increases with ecosystem stability.
Mutualistic relationships are essential for ecosystem health.
2. Resource partitioning is a mechanism that promotes species coexistence by:
Increasing interspecific competition for limited resources.
Allowing species to utilize different aspects of a shared resource.
Driving one species to local extinction.
Promoting hybridization between competing species.
3. The interaction where one species benefits and the other is harmed is called .
4. In a mutualistic relationship, both species involved from the interaction.
5. A species' is the full range of environmental conditions and resources it can possibly use.
6. Explain how character displacement can lead to species coexistence.
7. Describe the role of predation in maintaining species diversity within an ecosystem.
8. In a commensalistic relationship, both species benefit.
True
False
9. Apparent competition occurs when two species negatively affect each other indirectly through a shared predator.
True
False
Match each term on the left with its definition on the right.
10. Niche
a. An interaction where one species benefits and the other is unaffected.
11. Commensalism
b. The specific role an organism plays in its environment.
12. Amensalism
c. An interaction where one species is harmed and the other is unaffected.
13. Discuss the various mechanisms that allow multiple species to coexist in a given ecological community, despite potential competition for resources. Provide examples for each mechanism.
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