Food Chains, Energy Pyramids and Carbon Cycle

What role do you play in the food web?

• Producer

• Consumer

• Decomposer

• Human

Tags

NGSS.MS-LS2-3

How are primary consumers different from secondary consumers?

• Primary consumers eat only plants; secondary consumers eat other consumers.

• Primary consumers eat other consumers; secondary consumers eat only plants.

• Primary consumers eat plants and other consumers; secondary consumers eat plants and decompose matter.

• Primary consumers eat plants and decompose matter; secondary consumers eat plants and other consumers.

Tags

NGSS.MS-LS2-3

How might a lack of sunlight disrupt the food web?

• It would cause consumers to consume less.

• It would prevent decomposers from decomposing matter.

• It would prevent producers from producing nutrients.

• It would not disrupt the food web at all.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How is a food web different from a food chain?

• Food webs contain only producers, not consumers.

• Food webs do not include decomposers.

• Food webs contain many different, linked food chains.

• Food webs exist in aquatic environments; food chains exist in terrestrial environments.

Tags

NGSS.MS-LS2-3

This organism is most likely:

• A primary consumer

• A secondary consumer

• A decomposer

• A producer

In any ecosystem, there are always more:

• Herbivores than carnivores

• Predators than prey

• Animals than plants

• Heterotrophs than autotrophs

Virtually all plants are autotrophic. But there are no autotrophic animals or fungi. What can you infer about autotrophic organisms?

• They can move around on their own.

• They are at the top of the food chain.

• They can make their own energy.

• They reproduce slowly.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In most food chains, all of the energy originally comes from:

• Plants

• Dead matter that's been recycled by decomposers

• Heat from deep within the Earth

• The Sun

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In a marine food chain, small fish eat plankton, big fish eat small fish, and sharks eat big fish. Which organism has the smallest population?

• The plankton

• The small fish

• The big fish

• The sharks

Which organisms do primary consumers mainly eat?

• Producers

• Secondary consumers

• Predators

• Decomposers

Tags

NGSS.MS-LS2-3