ACA Grade 8 Science
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Ecology
Dictionary Definition -
the study of the relationships between living organisms and their environment

Lesson 1.4 Four Freshwater Biomes

Biomes
  •   Biomes are regions made up of ecosystems with similar plant life and climate.

  Four Freshwater Biomes
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Rivers and Streams
  • Rivers and streams, with high oxygen levels.
  • Plants are limited to shorelines and slow-moving shallows.

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Lakes and Ponds
  • Lakes and ponds, with middling to very low oxygen levels.
  • Plants grow along the shoreline or float in upper layers.

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Wetlands
  • Wetlands, such as swamps and bogs, that are wet most or all of the year.
  • Waterlogged soils limit plant species.

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Estuaries
  • Estuaries, which are mixed fresh and salt water, where river meets ocean.
  • Fertile ecosystems act as nurseries for fish and other sea animals.

       

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