Ecosystem

What do you call the body of water near the coast where fresh water from rivers and streams flows into the ocean and mixes with salt water?

• Intertidal Zone

• Estuary

• Ecosystem

Estuaries provide a wide range of resources for organisms.

• TRUE

• FALSE

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is an ecosystem?

• A community of non-interacting organisms and their physical environment.

• A biological community of interacting organisms and their chemical environment.

• A biological community of interacting organisms and their physical environment.

• A community of non-interacting organisms and their chemical environment.

What is an organism?

• Several animals, plants, or single-celled life forms.

• An individual animal, plant, or single-celled obejct.

• An individual animal, plant, or single-celled life form.

• Several animals and plants.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How many carnivores are shown in this food web?

• 6
• 4
• 5
• 3

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NGSS.5-LS2-1

Which of the following food chains shows the correct energy flow from left to right. 

• rabbit--owl--grass
• grass--rabbit--owl
• owl--rabbit--grass
• grass--owl--rabbit

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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 largest population?

• plankton
• small fish
• big fish
• sharks

In a food web, each ____________ depends on the trophic level below it for energy.

• consumer

• producer

• decomposer

• detritivore

Tags

NGSS.MS-LS2-3

Something important is missing from this food web! The grass starts this food web. But the plant's energy comes from __________, the one picture that is missing from the food web.

• water

• the sun

• the air

• the soil

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3