Biology EOC MP1 Review

Nutrients move through an ecosystem in

• biogeochemical cycles

• water cycles

• ecological pyramids

• pyramids of energy

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NGSS.MS-LS2-3

Look at the graph below. Aria, Lily, and Scarlett are part of a school project on environmental conservation. They are brainstorming plans to improve air quality in their city. Which of their plans will have the greatest impact?

• Hiring more firefighters to put out forest fires faster

• Developing city-wide public transportation services

• Encouraging residents to stop burning wood in their fireplaces

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NGSS.MS-ESS3-4

During a many year study, researchers found only 1 breeding pair of Florida scrub jays per 25 acres of land (remained constant). Which is a limiting factor in the habitat that MOST likely prevents an increase in the number of scrub jays?

• the amount of food available in the area

• the suitability of male scrub jays as mates

• the number of daylight hours during breeding season

• the tendency of young scrub jays to remain in the same area

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If the population of Yellow Perch in Lake Ontario decreased due to disease, which of these populations would also be MOST likely to decrease? Mark only one oval.

• Diatoms

• slimy sculpin

• Walleye and Lake Trout

• American eel

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Primary producers are organisms that. Mark only one oval.

• Rely on other organisms for their energy and food supply

• Consume plant and animal remains and other dead matter

• Use energy they take in from the environment to convert inorganic molecules into complex organic molecules

• Obtain energy by eating only plants

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NGSS.MS-LS2-3

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The series of steps in which a large fish eats a small fish that has eaten algae is a.

• Food web

• Food chain

• Pyramid of numbers

• Pyramid of biomass

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The total amount of living tissue at each trophic level in an ecosystem can be shown as a(n)

• Pyramid of energy

• Pyramid of numbers

• Pyramid of biomass

• Biogeochemical cycles

Which of the following is NOT true about matter in the biosphere?

• Matter is transferred in one direction through the biosphere

• Biogeochemical cycles transform and reuse molecules

• The total amount of matter decreases over time

• Human activity does not affect the movement of matter

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A carnivore obtains energy by eating other animals. Which of the following shows the process by which energy flows to a carnivorous animal?

• Light energy -> plant -> carnivore

• Plant -> light energy -> carnivore

• Light energy -> herbivore -> carnivore

• Light energy -> plant -> herbivore -> carnivore

• Light energy -> plant -> decomposer -> herbivore -> carnivore

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NGSS.MS-LS2-3

The diagram is a pyramid of biomass for a meadow ecosystem. The triangle shape of the diagram is useful for explaining which relationship among the trophic levels in this ecosystem?

• The amount of living organic matter is equal at all trophic levels in this ecosystem

• Third-level consumers in this ecosystem have the greatest amount of living organic matter

• With each step to a higher trophic level in this ecosystem, the amount of living organic matter increases

• Third-level consumers in this ecosystem provide living organic matter to producers and other consumers

• The amount of living organic matter decreases at each trophic level in this ecosystem

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NGSS.MS-LS2-3

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