Ecosystem and Energy Transfer

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

NGSS.MS-LS1-6

Only a small amount of the energy stored in food is available to the next organism in a food chain because _______.

• there are too many producers

• there are fewer top consumers in a food chain

• primary and secondary consumers compete for food

• most of the available energy is used by the organism or released as heat

Tags

NGSS.MS-LS2-3

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

NGSS.MS-LS2-1

Using the artic food web shown, which group of organisms is not represented in the food web?

• Decomposers

• Herbivores

• Consumers

• Producers

Tags

NGSS.MS-LS2-1

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

______________ show the amount of energy transferred from one trophic level to the next.

• Food chains

• Energy pyramids

• Food webs

What is the producer (plant) in the food web?

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

According to the image, what is the primary consumer in the food chain?

• snake

• grass

• Grasshopper

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

According to the image, what is the tertiary consumer in the food chain?

• snake

• Grasshopper

• frog

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

________________ are organisms that need to consume food to get energy.

• producers

• autotroph

• consumers

• carnivors