Flow of the food web

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen

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An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

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An organism that uses sunlight to create its own food is known as a:

• Producer
• Heterotroph
• Consumer
• Decomposer

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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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What does a food web represent?

• All connections of energy flow throughout all organisms in a habitat.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

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NGSS.MS-LS2-3

An energy pyramid represents what?

• How much sunlight is available for the ecosystem to use. 
• How much energy a particular organism needs. 
• How much energy is needed to build a pyramid. 
• The amount of energy available to the next 'feeder' in a food web.

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NGSS.MS-LS2-3

Why might an organism have more than one arrow coming from them in a food web?

• More than one organism may eat them. 
• They may eat more than one other organism. 
• This organism gets its energy from multiple sources. 
• They have no resources available to them.

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The largest group of organisms found in a food web would be:

• Primary Consumers
• Producers
• Decomposers
• Tertiary Consumers

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NGSS.MS-LS2-2

An animal that hunts other animals for food is a ___________

• herbivore
• predator
• prey
• omnivore

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Energy increases as you move up the food pyramid (from bottom to top).

• True 
• False

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