Successive stages of eating and being eaten by which recycling of materials and flow of energy takes place is called:
Correct answer: A. Food Chain
- A. Food Chain
- B. Food Web
- C. Trophic Level
- D. Food Link
Explanation
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another; the levels in the food chain are producers, primary consumers, higher-level consumers, and finally decomposers. These levels are used to describe ecosystem structure and dynamics.
This question appeared on the UHS MDCAT 2011 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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