Ecosystems and Food Webs Unit Test

Organisms at the beginning of a food chain are called

• consumers

• predators

• omnivores

• producers

Tags

NGSS.MS-LS1-6

In this picture of a food chain, which organism is the herbivore?

• snake

• eagle

• grass

• caterpillar

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Consumers that eat only producers are herbivores.

• True

• False

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

• producers

• omnivores

• herbivores

• decomposers

Tags

NGSS.MS-LS2-3

People can help nature recycle plant material by composting. People use compost in their gardens. How does placing compost in your garden improve the natural environment?

• It makes the soil harder.

• It makes the soil unusable.

• It helps keep insects away.

• It makes the soil rich in nutrients.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

A food chain models how energy is transferred in an ecosystem.

• True

• False

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

An animal who hunts and kills its own food is called a(n)

• predator

• scavenger

• producer

• omnivore

A producer eats animals for energy.

• True

• False

How do decomposers help plants?

• They help with photosynthesis.

• They provide oxygen.

• They enrich the soil.

• They hold water.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

In this picture of a food chain, which organism is the producer?

• mouse

• eagle

• grass

• caterpillar

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6