An ecosystem is:
Correct answer: A. A functional unit of biotic and abiotic components which have an energy source
- A. A functional unit of biotic and abiotic components which have an energy source
- B. Either a part of land surface, a body of fresh water or the open oceans
- C. A functional unit consisting of sunlight, air water and minerals
- D. A system consisting of an energy source, producers and consumers
Explanation
An ecosystem is a functional system in which biotic components interact with abiotic components and energy flows through the system. Option b describes possible physical areas containing ecosystems, while c and d omit essential components or processes.
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