GCSE Biology Revision quotPyramids of Biomassquot Triple

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=sgh1OWm0oTQ

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Don... • Great deals on workbooks for schools https://www.freesciencelessons.co.uk/... • In this video, we look at pyramids of biomass. We explore why biomass always decreases moving from one trophic level to the next. We then learn how to calculate the efficiency of biomass transfer. • This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Biology. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks. • Image credits: • Cows https://commons.wikimedia.org/wiki/Fi... • Oak Tree https://commons.wikimedia.org/wiki/Fi... • Msact at English Wikipedia [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 3.0 (https://creativecommons.org/licenses/...)], from Wikimedia Commons • Caterpillar https://commons.wikimedia.org/wiki/Fi... • By Greg Dwyer [CC BY-SA 2.5 (https://creativecommons.org/licenses/...)], from Wikimedia Commons • Sparrow By Fir0002 - Own work, GFDL 1.2, https://commons.wikimedia.org/w/index... • Sparrowhawk By Meneer Zjeroen - https://www.flickr.com/photos/nuskyn/..., CC BY 2.0, https://commons.wikimedia.org/w/index... • Music credit: • Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...) • Source: http://incompetech.com/music/royalty-... • Artist: http://incompetech.com/

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