This type of aquatic ecosystem is a mix of fresh and salt water.

• estuary
• lake
• river

An aquatic ecosystem includes any

• fish and frogs living there
• water environment and the community of organisms living there
• water but no animals or plants

Tags

NGSS.5-ESS2-1

NGSS.5-LS2-1

Which is a fresh water ecosystem?

• river
• estuary
• ocean

Tags

NGSS.5-ESS2-2

Salinity refers to

• how many plants are in the water

• how many organisms live in the water

• how much salt in is water

Which is NOT example of freshwater ecosystems

• Coral Reef
• Lake
• Pond
• Stream

Aquatic life is abundant, diverse, and full of sunlight at which zone?

• littoral zone

• benthic zone

• limnetic zone

Tags

NGSS.HS-LS2-6

Almost ____% of the earth's surface is covered with water.

• 100%

• 75%

• 50%

• 35%

Tags

NGSS.MS-ESS2-4

Which aquatic ecosystem are streams?

• estuaries

• freshwater ecosystem

• ocean

• wetland

Lakes are larger and deeper than ponds. This statement is:

• True

• False

This image belongs to a:

• river

• stream

• ponf

• lake

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4