Trophic Levels

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%
• 10%
• 100%
• 1000%

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Trophic levels are represented by 

• squares
• circles
• pyramids
• lines

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Which animal is the apex predator?

• hawk
• lizard
• snake
• grass

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Which animal is not the apex predator but, a predator to a mouse?

• hawk
• rabbit
• snake
• grass

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Why is a shark a carnivore.

• because it eats seaweed
• because it eats dead animals
• because it eats sand 
• because it eats other animals

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

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The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

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An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.

• producer
• consumer
• decomposer
• autotroph

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Organisms that create their own energy from sunlight or chemicals

• Herbivore
• Omnivore
• Autotroph
• Heterotroph 

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Eat primary consumers (can be carnivores and omnivores)

• Tertiary Consumers
• Secondary Consumers
• Quaternary Consumers 
• Top Predators 

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