Unit 1: Ecology, MHS

What is the source of all the energy in the ecosystem?

• Producers

• Consumers

• Sunlight

• Carbon

• Water

Tags

NGSS.MS-LS1-6

A(n) organism that needs to eat another organism to survive is called a....

• Producer

• Plant

• Consumer

• Animal

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Energy cycles back to the beginning of the food web.

• True

• False

Answer explanation

Energy enters an ecosystem with the sun but does not cycle back to the start. It is lost through metabolic processes that organisms use to live (only 10% moves up to the next trophic level).

Tags

NGSS.MS-LS2-3

Nutrients cycle back to the start of an food web.

• True

• False

Answer explanation

Tags

NGSS.MS-LS2-3

What organism cycles nutrients back to the start of the food web?

• Decomposer

• Sun

• Producer

• Consumer

Tags

NGSS.MS-LS2-3

Plants are called _ because _ .

• consumers, they need to get energy by eating another organism

• producers, they need to get energy by eating another organism

• consumers, they make their own food through photosynthesis

• producers, they make their own food through photosynthesis

Answer explanation

Plants are producers. They produce their own energy through photosynthesis (sunlight + water).

Tags

NGSS.MS-LS1-6

Select all options that are abiotic factors:

• Tree

• Rock

• Rain

• Eagle

Tags

NGSS.MS-ESS2-5

Select all options that are biotic factors:

• Tree

• Rock

• Rain

• Eagle

Tags

NGSS.MS-LS1-4

What are examples of abiotic limiting factors? Select all that apply.

• Drought

• Food Supply

• Predators

• Temperature

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

What are examples of biotic limiting factors? Select all that apply.

• Drought

• Food Supply

• Predators

• Temperature

Tags

NGSS.MS-LS2-1