Ecosystem Review

True or False:

An ecosystem is a community of living organisms

• true

• false

In an ecosystem, what role does a tree play?

• It cannot make its own food so it consumes other organisms

• It makes its own food

• It breaks down dead organisms

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an ecosystem, what role does a decomposer play?

• It breaks down dead organisms for energy, contributing to nutrient cycling

• It makes its own food through photosynthesis

• It eats other organisms for survival

Tags

NGSS.MS-LS2-3

In an ecosystem, does the energy flow start with the sun?

• yes

• no

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an ecosystem, what role does a consumer play?

• It is an organism that breaks down dead organisms

• It is an organism that makes its own energy and food

• It is an organism that eats other organisms for energy

Tags

NGSS.MS-LS2-2

In an ecosystem, how would you describe a food web?

• a model that contains many food chains

• a model that contains one food chain

• a model that shows where the sun gets its energy

• a model that shows how decomposers break down organisms

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

In a forest ecosystem, a food web is used to illustrate the flow of energy. Is this statement true or false?

• true

• false

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In an ecosystem, what is the primary source of all energy?

• Rivers

• Plants

• Decomposers like fungi

• The Sun

Tags

NGSS.MS-LS1-6

What do organisms need to survive?

• to have their needs met

• a comfortable home

• animals to eat

• humans

Tags

NGSS.2-LS2-1

NGSS.K-ESS3-1

NGSS.K-LS1-1

If there is a change in the ecosystem, the species living in it will either die or have to migrate to a different ecosystem

true or false

• true

• false

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4