Carbon Flow in Ecosystems

What are some of the components of this ecosystem, both living and nonliving?

• Only living organisms such as plants and animals

• Only nonliving things such as rocks and water

• Both living organisms and nonliving things like soil, water, and sunlight

• Only plants and soil

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How might conditions in the ecosystem—the amount of rainfall, the nutrients in the soil, the number of organisms within each population—fall out of balance? How might these changes affect the ecosystem?

• By causing populations to increase or decrease, which can disrupt the balance of the ecosystem.

• By keeping all populations stable and unchanged.

• By making the ecosystem immune to any changes.

• By ensuring that all organisms thrive equally regardless of conditions.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Fill in the blank: ____________ the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

• Photosynthesis

• Respiration

• Fermentation

• Transpiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Fill in the blank:________ is the process by which organisms convert glucose and oxygen into energy, carbon dioxide, and water.

• Cellular respiration

• Photosynthesis

• Fermentation

• Transpiration

Fill in the blank: ____________ refers to the total mass of living organisms in a given area or ecosystem.

• Biomass

• Photosynthesis

• Decomposition

• Evaporation

Fill in the blank: The ____________ is the layer of gases surrounding Earth.

• Atmosphere

• Hydrosphere

• Lithosphere

• Biosphere

Fill in the blank: The ____________ includes all living things on Earth.

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

Tags

NGSS.MS-LS2-3

Fill in the blank: The ____________ includes all the water on Earth.

• Hydrosphere

• Lithosphere

• Atmosphere

• Biosphere

Tags

NGSS.MS-ESS2-4

Fill in the blank: The ____________ includes the solid parts of Earth, such as rocks and soil.

• Geosphere

• Hydrosphere

• Atmosphere

• Biosphere

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Fill in the blank: A ____________ is a natural or artificial reservoir that accumulates and stores carbon.

• Carbon sink

• Carbon source

• Greenhouse gas

• Ozone layer

Tags

NGSS.MS-LS2-3