Gas Exchange in Fish
Автор: Mr Pollock
Загружено: 2015-05-08
Просмотров: 297698
Описание:
Another video on Exchange!
In this video we examine the gills as an example of an exchange surface. We also discuss how fish pass water over their gills and how countercurrent flow maintains favourable exchange of oxygen.
Made for AQA AS Level students studying Unit 2: Variety of Living Organisms.
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