Ecosystem is: ____________?
Correct answer: B. Open unit
- A. Both open and closed unit depending upon the biomass present
- B. Open unit
- C. Closed unit
- D. Both open and closed unit depending upon community type
Explanation
An ecosystem is an open system because it exchanges energy and matter with its surroundings, especially sunlight, heat, gases, water and nutrients. It is not sealed off merely because it has identifiable boundaries.
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