Ecology AP-Level Questions

The greatest amount of energy present in this pyramid is found at the level of the

• hawks
• snake
• rodents
• green plants

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The pyramid implies that in order to live and grow 1,000 kilograms of snakes would require

• less than 1,000 kilograms of green plants 
• 1,000 kilograms of rodents
• more than 1,000 kilograms of rodents
• no rodents

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Which of the following represents the food chain of the pyramid?

• green plant -> rodent -> snake -> hawk
• rodent -> green plant -> snake -> hawk
• snake -> green plant -> rodent -> hawk
• hawk -> snake -> rodent -> green plant

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The snake is acting as a 

• producer
• primary consumer
• secondary consumer
• autotroph

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Between which two organisms would there MOST LIKELY be the greatest competition?

• rat and snake
• lizard and arachnid
• rat and roadrunner
• arachnid and roadrunner

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NGSS.MS-LS2-1

If a plant stores 1,000 units of energy from the sun, and a field mouse eats the plants and is then eaten by a snake, who is then eaten by a bird, who is then eaten by a carnivore, how much of the original 1,000 units of energy will be available to the carnivore?

• 90
• 1
• 0.1
• 0.01

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Which of the following best explains why there are usually no more than five trophic levels in a food chain?

• There are not enough organisms to fill more than five levels
• There is too much competition among the organisms
• The statement is not true; there CAN be unlimited trophic levels
• Energy is lost at each trophic level

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Which of the following is NOT an abiotic factor?

• air
• water
• decomposers
• temperature

Which of the following encompasses all the others?

• ecosystem
• community
• population
• organism

Which species is the producer?

• A
• B
• C
• D

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