Lesson 55: Food Webs and Energy Flow

Hawks, snakes, and cougars are -

• producers.

• primary consumers.

• autotrophs.

• secondary consumers.

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NGSS.MS-LS2-2

Select all answers below that describe energy in a food web.

• Photosynthesis produces about 10% of the energy available to plants.

• A primary consumer uses up most of the energy it gets from a producer.

• About 10% of the energy from a trophic level is available to the next level.

• At each trophic level, some energy is lost into the atmosphere as heat.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

The ultimate energy source for the biosphere is -

• plants.

• ATP.

• the Sun

• glucose.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

An herbivore is a -

• producer.

• primary consumer.

• both a producer and a primary consumer.

• secondary consumer.

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NGSS.MS-LS2-2

A diagram representing feeding relationships in an ecosystem is called a -

• food web.

• consumer.

• producer.

• trophic level.

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NGSS.MS-LS2-3

The autotrophic process of concerting solar energy into chemical energy is called -

• photovoltaic conversion.

• photosynthesis.

• cellular respiration.

• osmosis.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

The arrows in a food web represent the transfer of ____________ from one organism to the next in feeding relationships within an ecosystem,

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NGSS.MS-LS2-3

An omnivore is a -

• primary consumer.

• secondary consumer.

• both a primary and a secondary consumer.

• producer.

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NGSS.MS-LS2-2

A(n) ___________________ consumes dead, organic matter.

• carnivore

• autotroph

• heterotroph

• detritivore

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NGSS.MS-LS2-3

Producers make glucose during photosynthesis. They convert most of the glucose to ATP, which is energy they can use for survival, in another process called -

• decomposition.

• cellular respiration.

• the 10% energy rule.

• cell differentiation.

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NGSS.MS-LS1-7