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10:07
YouTube
DrBiology
Gas Exchange in Fish - A level Biology
This video looks at gas exchange across the gills of a fish. I discuss the main adaptations including gill lamellae, gill filaments, including the counter-current principle. Designed for both OCR and AQA A level Biology. Thanks to www.bensound.com for the music
2.5K views
Oct 8, 2020
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