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    In class we learnt about gas exchange in frogs, insects and fish but I don't see it on the specification? do we need to know this for the exam? please help, thankyou!
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    My guess is it was just for understanding, probably just to help you grasp the concept.
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    That's weird.....:O
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    Is this AQA? I don't remember doing anything on gas exchange specifically in frogs, insects and fish.
 
 
 
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