please help and make sure all the answers and work is right

label Biology
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the main points for video notes https://www.youtube.com/watch?v=Ih4mknz6OVE just the main points dont miss any main points

Feb 16th, 2015

The video talk more about biology. The first thing the video is all about is food webs and food chains. additionally, the video explains more about ecological systems and how energy is saved in living organisms in the globe.

Feb 16th, 2015

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Feb 16th, 2015
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Feb 16th, 2015
Sep 23rd, 2017
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