Biogeochemical Cycles

What is an ecosystem?

• A group of similar species living together

• All the living organisms in a given area and the abiotic factors with which they interact

• A single species in a specific area

• Only the abiotic factors in an area

During a science class experiment, what do consumers (heterotrophs) like James and Avery release back into the atmosphere?

• Glucose and oxygen

• Nitrogen and water

• Carbon dioxide and water

• Oxygen and carbon dioxide

What is the role of autotrophs in the ecosystem?

• To consume other organisms

• To produce energy from sunlight

• To decompose organic matter

• To release nitrogen into the atmosphere

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

During a school science project, Mason and Abigail observed how energy exits an ecosystem. In what form does this energy leave?

• Sunlight

• Heat

• Water

• Nutrients

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NGSS.MS-LS2-3

What percentage of energy is available to primary consumers in the energy pyramid?

• 0.01%

• 1%

• 10%

• 100%

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NGSS.MS-LS2-3

In a school garden ecosystem, what is the role of primary consumers like caterpillars?

• They produce energy

• They consume producers

• They decompose organic matter

• They recycle nutrients

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NGSS.MS-LS2-3

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Hannah is studying ecosystems in her science class. What is the role of energy in an ecosystem?

• It is the only requirement for survival.

• It is crucial but not the only requirement.

• It is not needed at all.

• It is less important than nutrients.

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which element is represented by the symbol 'N' in the diagram?

• Nitrogen

• Neon

• Nickel

• Sodium

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NGSS.MS-PS1-1

Which cycle involves the exchange of carbon among the biosphere, geosphere, hydrosphere, and atmosphere?

• The Water Cycle

• The Carbon Cycle

• The Nitrogen Cycle

• The Phosphorus Cycle

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NGSS.MS-LS1-6

Which cycle is primarily driven by the evaporation and precipitation processes?

• The Carbon Cycle

• The Water Cycle

• The Nitrogen Cycle

• The Phosphorus Cycle

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NGSS.MS-ESS2-4