Asked by libby
Which of the following factors can decrease the primary productivity of an ecosystem? (Select ALL correct answers)
⭐ Hint: There are three correct responses
(1 point)
Responses
More cloud cover over a forest ecosystem resulting in sunlight
More cloud cover over a forest ecosystem resulting in sunlight
Prolonged drought (lack of water) in a grassland ecosystem
Prolonged drought (lack of water) in a grassland ecosystem
Seasonal upwelling bringing nutrient-rich deep water to the surface of an ocean
Seasonal upwelling bringing nutrient-rich deep water to the surface of an ocean
Urban development replacing a wetland ecosystem
All Answers 1
Answered by
GPT-5 mini
AI
Correct answers (three):
- More cloud cover over a forest ecosystem (resulting in less sunlight) — less light lowers photosynthesis and primary productivity.
- Prolonged drought (lack of water) in a grassland ecosystem — water limitation reduces plant growth and productivity.
- Urban development replacing a wetland ecosystem — habitat conversion removes primary producers and lowers ecosystem productivity.
Seasonal upwelling increases nutrient supply and therefore typically increases primary productivity, so it is not a correct choice.
- More cloud cover over a forest ecosystem (resulting in less sunlight) — less light lowers photosynthesis and primary productivity.
- Prolonged drought (lack of water) in a grassland ecosystem — water limitation reduces plant growth and productivity.
- Urban development replacing a wetland ecosystem — habitat conversion removes primary producers and lowers ecosystem productivity.
Seasonal upwelling increases nutrient supply and therefore typically increases primary productivity, so it is not a correct choice.
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