Front

What is the main difference between photosynthesis and chemosynthesis?

Back

Photosynthesis uses light energy to convert carbon dioxide and water into glucose and oxygen, while chemosynthesis uses chemical energy from inorganic molecules to produce glucose.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

How do animals obtain nitrogen?

Back

Animals obtain nitrogen by eating other organisms that contain nitrogen in their proteins.

Front

What is the trend in the concentration of carbon dioxide in the atmosphere?

Back

The concentration of carbon dioxide in the atmosphere is increasing, primarily due to fossil fuel use.

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Front

Is wood a renewable or non-renewable resource?

Back

Wood is a renewable resource.

Front

What is the efficiency of energy transfer between trophic levels?

Back

The efficiency of energy transfer from one trophic level to the next is roughly 10%.

Tags

NGSS.MS-LS2-3

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Tags

NGSS.MS-LS2-3

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Tags

NGSS.MS-LS2-3

Front

What is the significance of biodiversity in ecosystems?

Back

Biodiversity enhances ecosystem productivity and stability, providing resilience against environmental changes.

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5