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B3 - exchange surfaces SEPARATE SCIENCE! Watch

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    I am so confused. Any videos or advice to help!?!
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    https://youtube.com/watch?v=bQ8JB5J_H-U

    Let me know if you have any questions or still don't understand.
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    (Original post by Datalwo)
    https://youtube.com/watch?v=bQ8JB5J_H-U

    Let me know if you have any questions or still don't understand.
    Thank youuu... Is there anything else i need to learn in that topic in more depth
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    (Original post by PinkBoy)
    Thank youuu... Is there anything else i need to learn in that topic in more depth
    Watch this video too.
    https://youtube.com/watch?v=anKbrc0Yp2c

    Then you can see what the specification says and see if you know what you need to know.
    http://www.aqa.org.uk/subjects/scien...it-3-biology-3

    Edit: See these exam questions too. http://www.logs.uk.com/sites/default...%20Answers.pdf
 
 
 
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