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Ecosystems

Ecosystems

Pokegama Bay contains extensive forested wetlands, uplands, clay flats and submerged lands.
Courtesy of NOAA.

Ecosystems are composed of all interacting organisms (biota) along with their physical and chemical environments. Physical aspects of an ecosystem, called abiotic components, include variables related to temperature, sunlight, soil, and other factors.

Companion slide set to the video, "Ecosystems."

 

Author(s): Deanne Erdmann MS
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Aquatic Ecosystems

Ecological Pyramids of Biomass

Vertebrate Animals

EXTENSION: Microscopic Pond Life

Complex Animals Sleep and Need Sleep to Survive

Climate Change Affects Health