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Energy Flows and Ecosystems
• Amazing Symbiosis: Ant Army Defends Tree, National Geographic
https://www.youtube.com/watch?v=Xm2qdxVVRm4
A video illustrating the mutualism that exists between one species of ant and the Acacia tree.
• Energy Flow in Ecosystems
https://www.youtube.com/watch?v=lnAKICtJIA4
An explanation of how energy flows through ecosystems, touching upon the concepts of photosynthesis and chemosynthesis, cellular respiration, gross primary productivity, net primary productivity, and biomass.