ENERGY TRANSFER & PRODUCTIVITY: A-level Biology. NPP = GPP-R

Learn about energy transfer in a food web, what biomass is and how it is measured, what GPP and NPP are, how to calculate them and the units you would use.

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Image credits
@letscreatesomething
https://commons.wikimedia.org/wiki/File:Grey_seal_food_web.png
https://commons.wikimedia.org/wiki/File:Prehistoric_looking_rainforest.jpg
https://www.nsf.gov/news/news_summ.jsp?cntn_id=244804
https://www.pikist.com/free-photo-ifytm
https://www.needpix.com/photo/download/528126/seasons-of-the-year-summer-autumn-winter-spring-tree-free-pictures-free-photos-free-images
Music: Soho - Riot https://youtu.be/2TdSYkyou6Y

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