Food Webs-EVS

Which organisms make up the first trophic level in a food chain?

• Producers

• Consumers

• Decomposers

Tags

NGSS.MS-LS1-6

What process do producers/autotrophs use to make their own food from sunlight, carbon dioxide, and water?

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement is NOT true about primary consumers?

• The are herbivores.

• They are at the second trophic level.

• They eat animals/other consumers.

• They eat plants or algae.

Tags

NGSS.MS-LS2-3

What is an apex predator?

• The top predator that has no natural predators (except possibly humans).

• An herbivore.

• A type of secondary consumer.

• An omnivore.

Fill in the blank: Detritivores are organisms that eat nonliving plant and animal remains. For example, __________ such as vultures eat dead animals.

Tags

NGSS.MS-LS2-3

TRUE OR FALSE: Decomposers are important to an ecosystem because they help return nutrients to the soil.

• TRUE

• FALSE

Tags

NGSS.MS-LS2-3

Which one is bigger and more complex?

• Food Chain

• Food Web

What are the main producers of an ocean food chain?

• Krill

• Algae and plankton

• Fish

• Whales

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

TRUE OR FALSE: Biomass increases with each trophic level. There is always more biomass in higher trophic levels than in lower ones.

• TRUE

• FALSE

Tags

NGSS.MS-LS2-3

If biomass is lost from an ecosystem, what will happen to the ecosystem?

• Consumer populations will grow.

• The ecosystem will not be affected.

• The food web in the ecosystem will become unbalanced and disrupted.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4