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UHMWPE is a material used in replacing ball and socket joints like the femur to the hip...it's used because it does not wear away as fast as a super alloy and it reduces friction in the joints being replaced, therefore mimicking the job of cartlige. it coats the ball part of the arteficial...

Past exams are the best way to go...refer to your text book as seconary help. But past exams give you the most accurate idea of what the exam is going to be like. then it makes it easier to study once u know that.

thanks AGB, (just saw your thread now)

hi i'm a last-minute, cramming person....what textbook do you guys recommend for that?? would excel be any good??

I think i'll be one of the 22 that will do @#$% in eco. Thanks for the reassuring remark rude...lol anyways does anyone know where i can get exemplar essays for eco cos my teacher hasn't taught us how to structure any and use stats n all that so where do i go to get some good essays?? i'm...