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Competition for nutrients, food, light a...

Competition for nutrients, food, light and space is more severe between two

A

unrelated species occupying different niches

B

unrelated species occupying the same niche

C

closely related species occupying the same niche

D

closely related species occupying different niches

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Competition**: Competition in ecology refers to the struggle between organisms for the same resources, such as nutrients, food, light, and space. This competition arises when multiple organisms require the same resource to survive and thrive. 2. **Identifying the Context**: The question specifically asks about the severity of competition for nutrients, food, light, and space. It implies that the competition is more intense under certain conditions. 3. **Key Concept - Relatedness**: The severity of competition is generally more pronounced between organisms that are closely related. This is because closely related species often have similar requirements and ecological roles, leading to overlap in resource utilization. 4. **Niche Definition**: The term "niche" refers to the role or function of an organism within its ecosystem, including its habitat, resource use, and interactions with other organisms. When two species occupy the same niche, they are competing for the same resources. 5. **Analyzing Options**: - **Option A**: Unrelated species - This is incorrect because unrelated species do not compete as intensely for the same resources. - **Option B**: Unrelated species - This is also incorrect for the same reason as Option A. - **Option C**: Closely related species occupying the same niche - This is correct as closely related species that share the same niche will compete more fiercely for the same resources. - **Option D**: Closely related species occupying different niches - This is incorrect because if species occupy different niches, they are less likely to compete for the same resources. 6. **Conclusion**: Based on the analysis, the correct answer is **Option C: Closely related species occupying the same niche**. ---
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