Ecosystems

Decomposers such as fungi, insects, and molds get their energy from __________.

• Water

• Decaying or breaking down plants and animals

• Fertilizer

• All of the above

Tags

NGSS.MS-LS2-3

The student draws a diagram to show the roles of the producers, consumers, and decomposers in the rainforest. How is the role of the decomposers different from the role of the producers?

• The decomposers eat the plants to get energy.

• The decomposers make food using energy from the sun

• The decomposers provide nutrients for the atmosphere.

• They decomposers break down dead organisms.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

A student is developing a model of an ecosystem. Why does she want to include the sun in her model?

• The sun is needed to make the seasons on Earth.

• The sun keeps everything warm on Earth.

• The sun allows plants and animals to be part of the same ecosystem.

• The sun provides the energy for the production of food in the ecosystem.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following statements about producers is CORRECT?

• they make their own food

• they eat other organisms

• they make things other than food

• they obtain food by breaking down the remains of other living things

Tags

NGSS.MS-LS2-3

All animals in an ecosystem depend on __________ for energy.

• Decomposers

• Producers

• Consumers

• Herbivores

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Use the food chain below to answer the following question:

Forest food chain

sun -trees → bugs→ birds → fox-fungi

If the trees are destroyed in a forest fire, what could happen to the rest of the food chain?

• there will be no change in the food chain

• the population of the primary producers will increase

• the population of the consumers will increase

• the population of the consumers will decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Consumers that are eaten by predators.

• environment
• Habitat
• Consumer
• Prey

Tags

NGSS.MS-LS2-4

A living thing, such as a plant, that can make its own food.

• Producer
• Consumer
• Ecosystem
• Animal

Tags

NGSS.MS-LS2-3

A living thing that feeds on the wastes of plants and animals.

• Decomposer
• Omnivore
• Herbivore
• Carnivore

Tags

NGSS.MS-LS2-2

What would be harmful to a river ecosystem?

• Building a house near the river.

• Using chemicals at the river to kill plant and bug life.

• Picking a few river plants.

• Fishing

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5