Regents Ecology Questions

Energy for this ecosystem originally comes from

• water

• consumers

• sunlight

• plants

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An environment can support only as many organisms as the available energy, minerals, and oxygen will allow. Which term is best described by this statement?

• biological feedback

• carrying capacity

• homeostatic control

• biological diversity

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What impact do the amounts of available energy, water, and oxygen have on an ecosystem?

• They act as limiting factors.

• ]They are used as nutrients.

• They recycle the residue of dead organisms.

• They control environmental temperature.

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Which sequence shows increasing complexity of levels of ecological organization?

• biosphere, ecosystem, population, community,

• population, biosphere, community, ecosystem

• population, community, ecosystem, biosphere

• ecosystem, population, biosphere, community

Great horned owls and red-tailed hawks have similar requirements for food, space, and nesting materials. What would most likely be the result of great horned owls and red-tailed hawks living in the same community?

• ecological succession

• competition

• habitat destruction

• parasitism

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Which organisms are not shown in this diagram but are essential to a balanced ecosystem?

• heterotrophs

• autotrophs

• producers

• decomposers

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Organisms that can make their own food are called

• consumers

• heterotrophs

• detrivores

• autotrophs

An organism that eats both plants and animals is a

• carnivore

• herbivore

• omnivore

• detrivore

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Which of these is an abiotic factor?

• Bacteria

• Sunlight

• Worms

• Algae

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All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community
• habitat
• population
• ecosystem

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