Energy Transfer in Ecosystems

What is a producer

• A heterotroph

• Something that makes its own food

• An autotroph

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a consumer

• A eagle

• A plant

What is a decomposer

• They can be mushrooms

• They break down dead animals for energy

• they are plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Energy pyramids show the amount of energy in different trophic levels in an ecosystem. The diagram shows a simplified energy pyramid for the Florida Everglades. Which level contains the most energy?

• Grass

• Gray fox

• Marsh rabbit

• Florida panther

Tags

NGSS.MS-LS2-3

Read the following passage to answer the question that follows.

Ducks and snails often eat grass and algae in freshwater ponds. The snails are eaten by mice and ducks. Foxes prefer to eat mice but will eat a duck if the opportunity arises.

Which of the following food chains correctly represents the information in the passage?

• snails --> algae --> mice --> fox

• fox --> ducks --> mice --> algae

• grass --> snails --> mice --> fox

• fox --> duck

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Read the following passage to answer the question that follows.

Ducks and snails often eat grass and algae in freshwater ponds. The snails are eaten by mice and ducks. Foxes prefer to eat mice but will eat a duck if the opportunity arises.

What organisms would be considered primary consumers?

• algae and snails

• algae and grass

• snails and ducks

• only the fox

Tags

NGSS.MS-LS2-3

In the food web provided, which organism is considered an omnivore?

• Grasshopper

• Frog

• Mouse

• Hawk

A diagram of a food web is provided. Which organism receives the least amount of energy from the producers?

• Hawk

• Rabbit

• Grasshopper

• Mouse

Tags

NGSS.MS-LS2-3

The diagram shows the cycling of nutrients in an ecosystem. The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system? 

• Producers
• Consumers
• Decomposers
• Inorganic nutrients

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Complete burning of plant material returns carbon primarily to the

• herbivores
• water
• vegetation
• atmosphere

Tags

NGSS.MS-LS2-3