Question 32
The EcosystemWhich of the following combinations can be regarded as sub-systems within the ecosystem?
- A.Food chain, hydrological cycle, mineral nutrient cycle
- B.Hydrological cycle, mineral nutrient cycle, environmental controls
- C.Mineral nutrient cycle, hydrological cycle, ecosystem controls
- D.Ecosystem controls, food chain, hydrological cycle
- E.Food chain, ecosystem controls, environmental controls
Show the answer and explanation
Answer: A (Food chain, hydrological cycle, mineral nutrient cycle)
Explanation
The food chain (energy flow), the water cycle and the nutrient cycle are the working sub-systems of an ecosystem.