Freshwater ecosystems 1

This lake zone, also known as the Deep-Water Zone, suffers from a lack of light and has limited photosynthesis:

• Littoral

• Benthic

• Profundal

• Limnetic

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

• river

• pond

• wetland

• stream

What are the two main types of freshwater wetlands?

• lakes and ponds

• rivers and streams

• littoral zones and benthic zones

• marshes and swamps

Which of these is NOT a freshwater ecosystem?

• a river

• a lake

• an estuary

• a stream

Tags

NGSS.MS-ESS2-4

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

• marshes 
• swamps  
• estuaries

The process in which sediments, soil and rocks are added to a land form or land mass.

• erosion
• deposition
• mouth
• divide

An area which drains into a common river system.

• watershed
• tributary
• drainage divide
• riparian zone

A bend or curve in a stream channel

• headwaters

• meanders

• divide

• ridge

When 2 streams join together to make one, larger stream, the smaller of the 2 streams is called this? Most rivers will have many of them!

• tributary

• tiny

• meander

• confluence

The Open-water Zone- the top zone of water in a pond or lake and goes as deep as sunlight penetrates. Phytoplankton grows, fish thrive. It is also called the ________ Zone

• Limnetic

• Twilight

• Lentic

• Lola

• Arby's

Tags

NGSS.MS-LS2-3