Aquatic Ecosystems

What are the 3 types of wetlands?

• swamp, ocean, river
• pond, river, marsh
• marsh, marsh, marsh
• swamp, marsh, bog

Microscopic, free-floating, autotrophic organisms that function as producers in aquatic ecosystems are called...

• plankton
• zooplankton
• phytoplankton
• bacteria

A habitat in which the fresh water of a river meets the salt water of the ocean.

• estuary
• swamp
• marsh
• fen

Tags

NGSS.MS-LS2-3

In a lentic system water is still.

• True
• False

What is the name of the point where a river ends (where river meets ocean)?

• Tributary
• Water Shed
• Confluence
• Mouth of the River

In a freshwater ecosystems, organisms are adapted to changes in...

• water depth
• temperature
• salinity
• all of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What factors affect aquatic ecosystems? 

• Light, salinity, temperature
• Sun, moon and stars
• Nothing
• Coral reefs, whales

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Salinity in ocean water _________ as depth ____________.

• decreases, decreases
• increases, increases
• increases, decreases
• decreases, increases

What happens as depth increases in an ocean?

• Light decreases and it gets colder
• Light increases and it gets warmer
• Nothing

The aphotic zone is

• the ocean's dark lower layer where photosynthesis cannot occur
• the sunlit upper layer of the ocean where photosynthesis occurs
• on the bottom of lakes, streams, and oceans.
• where benthos are found

Tags

NGSS.MS-LS1-6