Ecosystem

What is a decomposer?

• A consumer that eats dead animals

• An organism that breaks down the remains of organisms

• The sun

• Soil

Tags

NGSS.MS-LS2-3

What is a carnivore?

• A consumer that eats other animals

• A consumer that eats plants

• A consumer that eats plants and animals

• A plant

Earthworms act as ________ eating decaying matter in the soil.

• Scavengers

• Carnivoes

• Herbivores

• Decomposers

What will happen if the number of snakes goes down?

• The owl will eat the grass

• The number of frogs will go down

• The hawk and owl will have less food

• The number of mice and grasshoppers will go up.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The transfer of energy from one organism to the next in an ecosystem begins with a producer. A producer is an organism that produces its own food. A consumer is an organism in a food chain that obtains energy from producers or other consumers; consumers may be herbivores or carnivores.

Which food chain correctly describes the flow of energy in an ecosystem?

• grass → grasshopper → fish → human

• grasshopper → fish → human

• human → fish → grasshopper

• human → grasshopper → fish → grass

Tags

NGSS.MS-LS2-3

In an ecosystem, a fungus, such as the mushroom pictured here, functions as a

• autotroph

• decomposer

• predator

• producer

What is almost always the first link (trophic level 1) in a food chain?

• predator

• producer

• secondary consumer

• primary consumer

How would you label the robin in the food chain below?

• producer

• secondary consumer

• primary consumer

• herbivore

Tags

NGSS.MS-LS2-3

Which of the following is NOT an example of an abiotic factor?

• sun

• snow

• temperature

• microorganisms

Which of the following is NOT an example of a decomposer?

• termites

• worms

• fungi

• algae

Tags

NGSS.MS-LS2-3