Energy Flow in Ecosystems

Which organism is an example of a producer?

• moth

• mushroom

• rose bush

• cheetah

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Maggots feed on dead and decaying organisms for energy. What are maggots?

• autotrophs

• producers

• decomposers

• heterotrophs

Tags

NGSS.5-LS2-1

In the food chain below, which is the producer?

grass --> mouse --> snake --> hawk

• grass

• mouse

• snake

• hawk

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is the primary consumer in this food chain?

• rabbit

• grass

• snake

• hawk

Tags

NGSS.MS-LS2-3

Which of the following describes an interconnection of food chains in an ecosystem?

• Food chain

• Food web

• Energy pyramid

• Producer web

What is this an example of?

• Food chain

• Food web

• Energy pyramid

• Energy web

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What would happen to the organisms in the food web below if the number of phytoplankton and vegetation (producers) decreased?

• Only the small fish would be affected

• Only the osprey would be affected

• The small fish and wading birds would be affected

• The entire food web would be affected

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which level does energy flow directly to after the producer level?

• Decomposer

• Producer

• Primary consumer

• Secondary consumer

Tags

NGSS.MS-LS2-3

What would happen to this food chain if we doubled the population of the rabbits?

• The populations of the snakes and hawks would also increase.

• The populations of the grass, snakes, and hawks would decrease.

• The grass population would decrease. The snake and hawk population would increase.

• The grass and hawk population would decrease. The snake population would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If a disease were to affect the snakes in the food chain, what will be the initial (beginning) effect on the populations of hawks and rabbits?

• The populations of hawks and rabbits will decrease.

• The populations of hawks and rabbits will increase.

• The population of hawks will increase. The population of rabbits will decrease.

• The population of hawks will decrease. The population of rabbits will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4