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  1. F

    Biology; Chemistry; Physics: Post your doubts here!

    i think u are answering me (a)(ii) but sorry to say that i dnt want explanation for this:notworthy: my question was its part (b)which says (b) Use your knowledge of how blood moves through the circulatory system to suggest an explanation for why, after a few minutes, the chair falls forwards...
  2. F

    Biology; Chemistry; Physics: Post your doubts here!

    but my question is that how can the chair be related to circulatory system :confused:
  3. F

    Biology; Chemistry; Physics: Post your doubts here!

    i want help with this question. can anyone please explain this question to me? Q no 4: part (b) nov 12 ppr http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Biology%20(5090)/5090_w12_qp_22.pdf thanks in advance
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    Biology; Chemistry; Physics: Post your doubts here!

    hi, i want revision checklist for biology 5090
  5. F

    English 1123

    Thanks, well I must try this now!!
  6. F

    English 1123

    Thanks for a helpful advice but I'm worried that how can I strengthenize my theme construction by reading novels when there is no more than a month ??
  7. F

    Biology; Chemistry; Physics: Post your doubts here!

    Firstly, I havenot heard anyone saying that enzyme is key because it has teeth. Rather I know that it's simply a lock on which there is a groove-like depression and into this depression, the key fits which is substrate. So that's why it's true that enzymes are specific in shape as they only fit...
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    Biology; Chemistry; Physics: Post your doubts here!

    Lock is enzyme to which the key, substrate fits after which the product is formed. Like amylase is lock and starch which is the key fits to it and forms maltose, the product.
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    Biology; Chemistry; Physics: Post your doubts here!

    Can anyone explain me about what is a solenoid?
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    English 1123

    Second language
  11. F

    English 1123

    Thank you :)
  12. F

    English 1123

    I'm going to appear in 2013 may June examination. I want help in English. Although I'm good at comprehensions but it's pretty hard for me to cope with paper 1 especially section B. I'm working hard for my story writing but I'm not satisfied with my work. My language is although good but I find...
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