Species Coexistence Worksheet
Explore the mechanisms and ecological principles behind species coexistence in various ecosystems.
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Species Coexistence
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Read each question carefully and answer to the best of your ability. This worksheet covers concepts related to species coexistence, competition, and niche partitioning.
1. Which of the following best describes the principle of competitive exclusion?
Two species can coexist indefinitely if they share the exact same niche.
Two species competing for the same limited resources cannot coexist if their niches are identical.
Predator-prey relationships are always stable.
Symbiotic relationships always lead to the exclusion of one species.
2. What is niche partitioning?
The division of resources and habitats by competing species to minimize overlap.
The complete overlap of niches between two species.
A process where one species outcompetes and eliminates another.
The process of species adapting to new environments.
3. The role an organism plays in its environment, including its interactions with biotic and abiotic factors, is called its .
4. When two species compete for the same resources, and one species is better able to utilize those resources, it can lead to the of the other species.
5. is a type of interaction where one organism benefits and the other is harmed.
6. Resource partitioning always involves physical separation of species.
True
False
7. Mutualism is a relationship where both species benefit.
True
False
8. Describe how character displacement can lead to species coexistence.
9. Explain the difference between a fundamental niche and a realized niche.
Use the words below to complete the sentences.
10. When different species live together in the same habitat, they are said to be in .
11. The struggle between organisms for limited resources is known as .
12. A close and long-term interaction between two different biological organisms is called .
13. Discuss at least three different mechanisms that allow species to coexist despite sharing some common resources. Provide an example for each mechanism.
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