NGSS.HS-LS2-3

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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NGSS.HS-LS2-3

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria
• plants
• animals
• producers

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NGSS.HS-LS2-3

What do the arrows in a food chain and a food web represent?

• Flow of force
• What consumers eat
• Flow of survival
• Flow of energy

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NGSS.HS-LS2-3

The process where some bacteria remove nitrate from the soil by converting it to nitrogen gas is:

• nitrification
• nitrogen fixation
• denitrification
• nitrification

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NGSS.HS-LS2-3

A key characteristic of aquatic dead zones is

• a lack of water

• a low concentration of keystone species

• a high concentration of urban development

• A low concentration of oxygen

• Low concentrations of nitrogen and phosphorous

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NGSS.HS-LS2-3

What is a food chain?

• The flow of energy from one thing to another

• The way animals eat each other

• The way the sun makes everything

• How the plants grow

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NGSS.HS-LS2-3

Which of these organisms would be most likely to be found at the top of an energy pyramid?

• Crab
• Shark
• Sardine
• Kelp

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NGSS.HS-LS2-3

Organisms that break down food large, complex chemicals in dead organisms into small, simple chemicals

• ribosomes

• flagelllum

• conjugation

• decomposers

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NGSS.HS-LS2-3

In a Central Texas grassland, the producers incorporate 12,000 kJ of energy from the sun into their tissues. About how much energy would be incorporated into the tissues of herbivores?

• 12,000 kJ

• 1,200 kJ

• 10,800 kJ

• 1,080 kJ

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NGSS.HS-LS2-3

How much energy is passed from one trophic level to the next?

• .1%

• 1%

• 10%

• 100%

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NGSS.HS-LS2-3