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GCSE AQA bio question help

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how do i find the heart beat in 15 seconds, its only one mark so i dont assume its that difficult. and what vessel am i meant to look at bc its not specified. + mark scheme says its 17, not sure how to find it tho….. help needed urgently plz!!!!
(edited 12 months ago)
You count the waves on blood vessel A, there are 17 oscillation peaks on the wave so the heart beat 17 times in the 15 seconds shown on the graph

Reply 2

Original post by DerDracologe
You count the waves on blood vessel A, there are 17 oscillation peaks on the wave so the heart beat 17 times in the 15 seconds shown on the graph

omdsss its so simple, thank u smmmm🤗🫶🫶🫶

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