Staar Ecosystem

An _______ is a community of living and non-living components in an environment.

• Environment

• Ecosystem

• Population

• Community

Which best describes an organisms niche?

• The habitat of an organism

• The consumers the organism eat

• The job an animal has within its population

An organism that feeds on another organism?

• Consumer

• Decomposer

• Producer

• Organism

Tags

NGSS.MS-LS2-3

A simple organism that breaks down dead organisms and waste, returning important nutrients to the environment?

• Organism

• Decomposer

• Consumer

• Producer

Tags

NGSS.MS-LS2-3

Which of the following best describes the role of decomposers in an ecosystem?

• They produce their own food through photosynthesis.

• They consume other organisms for energy.

• They break down dead organisms and waste, returning nutrients to the soil.

• They are the primary consumers of plants.

Tags

NGSS.MS-LS2-3

What is the role of decomposers in an ecosystem?

• They produce oxygen through photosynthesis

• They eat living plants and animals

• They break down dead organisms and return nutrients to the soil

• They help pollinate plants

Tags

NGSS.MS-LS2-3

Which of the following best describes a producer in an ecosystem?

• An organism that eats other animals

• An organism that breaks down dead material

• An organism that makes its own food through photosynthesis

• An organism that only eats plants

Tags

NGSS.MS-LS1-6

What is the primary source of energy for most ecosystems?

• Wind

• The Sun

• Water

• Soil

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why is biodiversity important in an ecosystem?

• It ensures that all organisms are the same size

• It increases the amount of pollution

• It helps the ecosystem be more resilient to changes

• It makes the ecosystem look more attractive

Tags

NGSS.MS-LS2-5

What is a habitat?

• A large area of water

• The role an organism plays in its ecosystem

• The natural home or environment of an animal, plant, or other organism

• A group of the same species living together