SRA #1

How can the supply of nitrogen best be described?

• part of the hydrosphere
• part of the community
• biotic factor in the ecosystem
• abiotic factor in the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How does the flow of energy and nitrogen occur in the ecosystem?

• Producers use energy and nitrogen from the environment and transfer energy only to decomposers
• Consumers use energy and nitrogen from the environment and transfer energy only to producers
• Producers use energy and nitrogen from the environment and transfer energy to decomposers and consumers
• Decomposers use energy and nitrogen from the environment and transfer energy to producers and consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How would the ecosystem change if decomposers were removed?

• The ecosystem would become unstable since decomposers would no longer be supplying nitrogen
• The ecosystem would become more stable since decomposers are parasites.
• Populations in the ecosystem would decrease since decomposers spread diseases.
• Populations in the ecosystem would increase since decomposers gain energy and matter from others

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What role do decomposers play in the cycling of matter?

• They produce heat used to absorb matter from the atmosphere.
• They create new atoms from the energy absorbed from producers and consumers.
• They serve as sources of energy for producers and consumers.
• They break down matter from producers and consumers into simple molecules.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which statement correctly describes the cycling of carbon and oxygen between abiotic and abiotic part?

• Animals and plants add carbon dioxide to the atmosphere.
• Decomposers and plants add oxygen to the atmosphere.
• Animals take oxygen from the atmosphere and release carbon dioxide to the environment.
• Decomposers break down waste material and release oxygen to the environment.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which path correctly traces the carbon that ends in the growth and development of the owl?

• The bird uses carbon from the air to make food that is transferred through the food chain until it reaches the owl
• The plant uses carbon from the air to make food that is transferred through the food chain until it reaches the owl
• The snake combines elements from the bird to create the carbon that is transferred to the owl
• The grasshopper removes carbon from the grass that is repackaged and transferred directly to the owl

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How does the owl contribute carbon to the grass?

• The grass rearranges the molecules from the owl, requiring energy from the Sun and releasing carbon dioxide
• The owl rearranges the molecules from the grass, requiring energy from the Sun and releasing carbon dioxide
• The snake rearranges the molecules from the owl, releasing energy and carbon dioxide.
• The owl rearranges the molecules from the snake, releasing energy and carbon dioxide.

Tags

NGSS.MS-LS2-3

Which abiotic parts will complete the diagram?

• in: plant leaves; out: water
• in: plant leaves; out: carbon dioxide gas
• in: carbon dioxide gas; out: water
• in: oxygen gas; out: carbon dioxide gas

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3