7.4 - 2 Flow of Energy in Ecosystems

Front

What is the primary source of energy for ecosystems?

Back

The Sun is the primary source of energy for ecosystems.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is energy transfer in the context of ecosystems?

Back

Energy transfer refers to the movement of energy from one trophic level to another within an ecosystem.

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NGSS.MS-LS2-3

Front

Define producers in an ecosystem.

Back

Producers are organisms that can make their own food through photosynthesis or chemosynthesis, such as plants and algae.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What are primary consumers?

Back

Primary consumers are organisms that eat producers; they are typically herbivores.

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NGSS.MS-LS2-3

Front

What role do secondary consumers play in an ecosystem?

Back

Secondary consumers are organisms that eat primary consumers; they can be carnivores or omnivores.

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NGSS.MS-LS2-3

Front

What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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NGSS.MS-LS2-3

Front

Explain what a food web is.

Back

A food web is a complex network of interconnected food chains that illustrates how energy and nutrients flow through an ecosystem.

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NGSS.MS-LS2-3

Front

What do the arrows in food chains and food webs indicate?

Back

The arrows indicate the direction of energy flow from one organism to another.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What happens to energy as it moves up the trophic levels?

Back

As energy moves up the trophic levels, most of it is lost as heat, and only a small percentage is transferred to the next level.

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NGSS.MS-LS2-3

Front

What is the 10% rule in energy transfer?

Back

The 10% rule states that only about 10% of the energy from one trophic level is passed on to the next level.

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NGSS.MS-LS2-3