What is the niche of an organism in an ecosystem?
Correct answer: D. Role played by an organism in its ecosystem
- A. Role played by many organisms in an ecosystem
- B. Role played by a dead organism in an ecosystem
- C. Role played by community of microorganisms in their ecosystem
- D. Role played by an organism in its ecosystem
Explanation
The niche of an organism is the role that it plays in a community, especially its living conditions and its interaction with other organisms in the community, and also its behavior and influence.
This question appeared on the UHS MDCAT 2012 paper, which you can sit online with every answer explained.
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About Ecosystems
An ecosystem consists of organisms interacting with one another and with abiotic factors such as light, water, soil and temperature. The topic covers populations and communities, food chains and webs, trophic levels, ecological pyramids, energy flow, nutrient cycles and ecological succession.
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