LS.8.2.4 - Modeling Energy Flow in Food Webs

Which of the following best describes the role of producers in an ecosystem's energy flow?

• They consume other organisms for energy.

• They convert solar energy into chemical energy through photosynthesis.

• They decompose organic matter to release nutrients.

• They store energy in the form of fat.

Tags

NGSS.MS-LS1-6

Explain how energy is transferred from one trophic level to the next in a food chain.

• Energy is transferred through the consumption of organisms at lower trophic levels.

• Energy is transferred through the absorption of sunlight by all organisms.

• Energy is transferred through the decomposition of dead organisms.

• Energy is transferred through the release of carbon dioxide.

Tags

NGSS.MS-LS2-3

Describe the process of photosynthesis and its importance in the carbon cycle.

• Photosynthesis is the process by which plants release carbon dioxide into the atmosphere.

• Photosynthesis is the process by which plants convert carbon dioxide and water into glucose and oxygen, playing a crucial role in removing carbon dioxide from the atmosphere.

• Photosynthesis is the process by which animals convert oxygen into carbon dioxide.

• Photosynthesis is the process by which plants decompose organic matter.

Tags

NGSS.MS-LS1-6

What is the primary source of energy for most ecosystems on Earth?

• Wind energy

• Solar energy

• Geothermal energy

• Chemical energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Analyze how the water cycle contributes to the cycling of matter in ecosystems.

• The water cycle only affects the atmosphere and has no impact on ecosystems.

• The water cycle transports nutrients and minerals through precipitation and runoff, supporting plant growth and sustaining ecosystems.

• The water cycle removes all nutrients from the soil, making it infertile.

• The water cycle only involves the evaporation of water from oceans.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Which process in the water cycle involves the conversion of water vapor into liquid water?

• Evaporation

• Condensation

• Precipitation

• Transpiration

Tags

NGSS.MS-ESS2-4

Evaluate the impact of human activities on the carbon cycle and suggest a strategy to mitigate these effects.

• Human activities have no impact on the carbon cycle.

• Human activities increase carbon emissions, leading to climate change; a strategy to mitigate this is to reduce fossil fuel consumption and increase reforestation efforts.

• Human activities decrease carbon emissions, stabilizing the climate; a strategy to mitigate this is to increase fossil fuel consumption.

• Human activities only affect the water cycle, not the carbon cycle.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What is the role of decomposers in the recycling of matter within ecosystems?

• Decomposers produce energy for the ecosystem.

• Decomposers break down dead organisms, returning nutrients to the soil and supporting plant growth.

• Decomposers consume living plants and animals.

• Decomposers store energy in the form of fat.

Tags

NGSS.MS-LS2-3

Identify the correct sequence of trophic levels in a typical food chain.

• Producers, Secondary Consumers, Primary Consumers, Tertiary Consumers

• Primary Consumers, Producers, Secondary Consumers, Tertiary Consumers

• Producers, Primary Consumers, Secondary Consumers, Tertiary Consumers

• Tertiary Consumers, Secondary Consumers, Primary Consumers, Producers

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

How does the process of transpiration contribute to the water cycle?

• Transpiration involves the absorption of water by plants from the soil.

• Transpiration is the release of water vapor from plant leaves into the atmosphere, contributing to cloud formation and precipitation.

• Transpiration is the process of water flowing over the surface of the earth.

• Transpiration is the conversion of water vapor into liquid water.

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3