Practice Test: Matter in Ecosystems

Energy and other materials from dead organisms are recycled back into the soil by ______.

• producers

• consumers

• decomposers

• nonrenewable resources

Tags

NGSS.MS-LS2-3

All animals are ______.

• producers

• consumers

• predators

• prey

Organisms that are eaten by other animals are called ______.

• herbivores

• carnivores

• predators

• prey

The amount of water in an ecosystem can be a limiting factor on the number of organisms living in that ecosystem.

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What word best describes a hawk?

• herbivore

• decomposer

• predator

• prey

The job of decomposers is to break down dead plants and animals into useful substances. This job is their _______.

• adaptation

• skill

• niche

• habitat

Tags

NGSS.MS-LS2-2

Which of the following is not an abiotic factor?

• rocks

• air

• animals

• water

An example of interdependence is a plant’s need for carbon dioxide that animals exhale and the food plants provide to the animals.

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Plants cannot grow too close together because their ______ need to spread out and absorb nutrients from the soil.

• stems

• roots

• petals

• xylems

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

______ is the evaporation of water from a plant's leaves.

• Transpiration

• Storage

• Water absorption

• Nutrient evaporation