Q2 exam preparation

An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?

• They break down dead organisms to return nutrients to the soil.
• They produce their own food for survival.
• They play a role in preventing weathering and erosion.
• They provide most of the energy to consumers.

Tags

NGSS.MS-LS2-3

Which best describes how decomposers help support life in an ecosystem?

• Decomposers add nutrients to the soil.
• Decomposers provide a habitat in the ecosystem.
• Decomposers add producers to the ecosystem.
• Decomposers provide energy for consumers.

Tags

NGSS.MS-LS2-3

Which is an example of a decomposer?

• a hawk
• a mouse
• a flower
• a mushroom

Tags

NGSS.5-LS2-1

Which describes a decomposer?

• an organism that eats only plants
• an organism that makes its own food
• an organism that breaks down dead matter
• an organism that receives energy from the sun

Tags

NGSS.MS-LS2-3

Which is considered a decomposer?

• fungi
• mold
• bacteria
• all of the above

Tags

NGSS.5-LS2-1

What is the role of a decomposer in a food web?

• It eats animals
• It produces its own food and provides other organisms with food
• It eats plants
• It breaks down dead plants and animals into minerals

Tags

NGSS.MS-LS2-3

Are fungi and bacteria same?

• Yes

• No

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NGSS.MS-LS4-2

What plant structure transfers sugars throughout the plant?

• Phloem

• Transpiration

• Xylem

• Stomata

Tags

NGSS.4-LS1-1

NGSS.5-LS2-1

What is the name of the process that helps water evaporate from a plant's leaves?

• Evaporation

• Perspiration

• Transpiration

• Phloem

What pore-like feature on a plant's leaves prevent water from escaping?

• Phloem

• Stomata

• Roots

• Xylem

Tags

NGSS.4-LS1-1