Freshwater Ecosystems II

 Freshwater ecosystems include.

• Lakes, Ponds, Rivers, and streams
• Lakes, bays, and wetland
• Ponds and Lakes only

  Wetlands are underwater

• All the time
• Periodically
• Only during storms

  These factors can determine which organisms are present in an aquatic ecosystem.

• Temperature, sunlight, and state
• Temperature, sunlight, and country
• Temperature, sunlight, oxygen, & nutrients.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

  Plankton, Nekton, and ____________ are the three groups of aquatic organisms.

• Fish
• Benthos
• Plants

The two major categories of plankton are...

• zooplankton & phytoplankton
• zooplankton & crabs
• phytoplankton & lily pads

_______________ have the ability to swim in the water against the currents.

• Plankton
• algae
• Nekton
• benthos

_____________ are free floating and go "with the flow".

• Bluefish
• Plankton
• Benthos
• Nekton

_________________ are found at the bottom of the Lake and are often decomposers like bacteria.

• Benthos
• Nekton
• Plankton

How do humans artificially create lakes?

• Beaver dams
• Holes from asteroids
• Dams on Rivers.

Tags

NGSS.MS-ESS3-4

NGSS.MS-ETS1-1

Dams can be used to...

• Produce power
• irrigate farmland
• provide recreational areas
• all of the above

Tags

NGSS.MS-ESS2-4

NGSS.MS-ETS1-2