Food Chains and Food Webs/Energy Pyramid Review

Producers are generally found at the beginning

of a food chain. Which statement best explains

why this is true?

• A) Producers are usually smaller in size than

  consumers.

• B) Producers do not rely on other organisms

  for food.

• C) There are always more consumers than

  producers in food chains.

• D) Consumers are always more complex

  organisms than producers.

Tags

NGSS.MS-LS2-3

The organisms represented by X are

• A) Decomposers

• B) Producers

• C) Carnivores

• D) Scavengers

Most of the food and oxygen in the

environment is produced by the action of

• A) saprophytic bacteria

• B) heterotrophic organisms

• C) aerobic protozoans

• D) autotrophic organisms

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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

NGSS.MS-LS2-2

For a producer to maintain itself, which factor

must be present in its environment?

• A) carnivores

• B) herbivores

• C) sunlight

• D) parasites

Tags

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NGSS.MS-LS1-6

Which row in the chart below best describes decomposers?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS2-3

Which organisms are primary consumers?

• A) grass, mice, and hawks

• B) owls, snakes, and hawks

• C) seeds, grass, and shrubs

• D) songbirds, mice, and rabbits

Tags

NGSS.MS-LS2-2

Which nutritional relationship described below

contains an organism that can be classified as

a heterotroph, secondary consumer, and

scavenger?

• A) A field mouse eats an ear of corn.

• B) Certain bacteria live in nodules on clover

  roots.

• C) A crow eats a portion of a dead rabbit.

• D) A peregrine falcon kills and eats a

  pigeon.

Which statement most accurately predicts the result

of interfering with populations in the web?

• A) Removing the cricket population will have little

  effect on the balance of the food web.

• B) Removing all the mountain lions from the food

  web will benefit the ecosystem.

• C) Removing the cricket and rabbit populations

  would cause the number of trees to decrease.

• D) Removing deer from the food web will affect

  the rabbit and grass populations.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which population would be most immediately affected by the removal of the lizard

population?

• A) sedges

• B) algae

• C) ants

• D) centipedes

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

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