Basic Ecology

In this energy pyramid, which level has the least amount of energy?

• Producers

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Tags

NGSS.MS-LS2-3

Which two organisms are classified as producers?

• A. tadpole and worm

• B. algae and grass

• C. grass and tadpole

• D. raccoon and algae

Tags

NGSS.MS-LS2-3

Which statement most accurately predicts the result of interfering with populations in the web?

• Removing the cricket population will have little

  effect on the balance of the food web.

• Removing all the mountain lions from the food

  web will benefit the ecosystem.

• Removing the cricket and rabbit populations

  would cause the number of trees to decrease.

• Removing deer from the food web will affect

  the rabbit and grass populations.

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NGSS.MS-LS2-1

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The diagram below represents a food web

composed of producers, consumers, and

decomposers.

Which group would represent the decomposer

organisms?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-3

Which of the animals in this food web is only a secondary consumer?

• Hawk

• Lizard

• Mouse

• Rabbit

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

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NGSS.MS-LS2-1

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NGSS.MS-LS2-4

About how much energy is available to be passed on to the next trophic level in an ecosystem?

• 100%

• 10%

• 50%

• 75%

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

The image provided is an example of a(n):

• Autotroph

• Carnivore

• Herbivore

• Decomposer

Snakes eat many types of small mammals including mice and rabbits as well as other lizards.  Snakes would best be classified as a(n) - 

• producers

• herbivores

• carnivores

• omnivores

Biotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Tags

NGSS.MS-LS2-2