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Which best determines the number of wolves that can live in an area?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Which level of a food chain has the most energy?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
What happens to a population and to competition when there is a reduction of living space?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Which best explains the importance of nitrogen in the cycling of energy and matter?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Which best describes an abiotic limiting factor in a population?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Some plants have fungi that live intertwined in their roots. The fungi provide nutrients to the plants, while the plants’ roots provide a habitat for the fungi. Which relationship is demonstrated by this example?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Which of these organisms is a producer in a marine ecosystem?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
Kudzu vines grow by climbing and wrapping around trees. Trees covered by kudzu can die because they are starved of sunlight. What type of relationship exists between the trees and the kudzu growing on them?
water
Competition strengthens while the population contracts.
the amount of food available in the area
Nitrogen increases protein production in plants.
mutualism
parasitism
producers
algae
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