Aquatic Ecosystems Freshwater

An area of land that is saturated, or soaked, with water for at least part of the year is called

• river

• pond

• wetland

• stream

Tags

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factor that determines where aquatic organisms live

• temperature

• coral reef

• pond

• benthos

• nekton

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What are the two main types of freshwater wetlands?

• lakes and ponds

• rivers and streams

• littoral zones and benthic zones

• marshes and swamps

Which is NOT a freshwater ecosystem?

• a river
• a lake 
• an estuary
• a stream

What aquatic biome is characterized by flowing fresh water?

• Lakes/Ponds

• Wetlands

• Rivers/Streams

• Coral Reefs

_____________ are wetlands that are dominated by woody plants, such as trees.

• marshes 
• swamps  
• estuaries

Which watery biome has the lowest concentration of salt?

• freshwater
• ocean
• coral reef
• wetland

Which biome is pictured below?

• mangrove

• coral reef

• ocean

• freshwater

Approximately what percentage of the water on Earth is freshwater?

• 0.1%

• 1%

• 50%

• 97%

Tags

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Ponds are _______ and ________ than lakes?

• smaller and shallower
• fatter and larger
• wider and larger
• longer and wider