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biology AS isa- cell length, gaseous exchange and cells

can someone please help me out with the practical side of the isa. i have it on wednesday and I'm not sure what to expect, any help would be greatly appreciated.
thanks :smile:
all i have been told is that it could be about cell length and gaseous exchange
Reply 1
Hey can anyone tell me what you have to do for the cell length Isa practical?


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