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What does a food chain represent?

• How all living organisms within a habitat are connected.
• All of the things that a particular animal eats.
• How plants create their own food.
• A single path of energy transfer within a habitat.

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The most energy is available at the _______________  level of the energy pyramid. As you move up the pyramid, each level has less energy available than the level below

• consumer
• producer
• carnivore
• food chain

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A crow eats the remains of a dead animal. What type of consumer does this prove the crow to be?

• a decomposer

• a herbivore

• a predator

• a scavenger

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Which best describes how decomposers help support life in an ecosystem?

• Decomposers add nutrients to the soil.

• Decomposers provide a habitat in the ecosystem.

• Decomposers add producers to the ecosystem.

• Decomposers provide energy for consumers.

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What is the role of decomposers in a food chain?

• Use sunlight to make food
• Eat other organisms to gain energy
• Make the food for the whole food chain
• Break down dead organisms and add nutrients to the soil

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NGSS.5-LS2-1

Which is the correct order of the food chain of the channel catfish?

• A,B,C,D

• B,C,D,A

• C,D,A,B

• D,B,A,C

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NGSS.5-LS2-1

Fossil Fuels formed over long periods of time after particles in water settled to the sea floor and formed marine mud.  What kinds of particles needed to be present in the marine mud in order for fossil fuels to form.

• Mostly sand and a few small bits of wood
• Mostly decaying organisms
• Mostly lava and a few sedimentary rocks
• Mostly metal minerals

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Bacteria is known as ______________ in an ecosystem when feeding on dead organisms.

• decomposers
• herbivores
• pathogens
• infections

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Living and nonliving things interacting in an environment is called:

• Organism

• Producer

• Consumer

• Ecosystem

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The part of the ecosystem that gets their energy from producers or other living things.

• producers

• decomposers

• consumers

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