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  1. Ali_Hasan

    BIO PPR 1 V1 <3

    Red Blood Cells had no nucleus* not biconcave.
  2. Ali_Hasan

    BIO PPR 1 V1 <3

    Didn't mean to be rude, but C is wrong. The blood flow is messed up.
  3. Ali_Hasan

    BIO PPR 1 V1 <3

    Because for peristalsis to happen, it needs muscles. And for muscles to contract and relax, they need energy, which comes from respiration.
  4. Ali_Hasan

    BIO PPR 1 V1 <3

    Exactly. The answer was D.
  5. Ali_Hasan

    BIO PPR 1 V1 <3

    For god's sake how can it be C? Did you guys even study the circulatory system? The flow of blood in C is completely wrong. D is the answer.
  6. Ali_Hasan

    BIO PPR 1 V1 <3

    Huh? What active transport? The question was "which process depends on energy from respiration", the answer is C, peristalsis.
  7. Ali_Hasan

    BIO PPR 1 V1 <3

    So? And the 16% is what it EXHALES. It needs Oxygen for respiration..
  8. Ali_Hasan

    BIO PPR 1 V1 <3

    Wrong. It gets Oxygen for aerobic respiration from the water, and excretes Carbon Dioxide by respiration which goes out of his skin to the water. So the answer is A.
  9. Ali_Hasan

    BIO PPR 1 V1 <3

    D.
  10. Ali_Hasan

    BIO PPR 1 V1 <3

    If you think D doesn't make sense, then I'm sorry to say you didn't study the circulatory system well. I chose D without even thinking about it. It was so obvious, the flow of blood in C is completely wrong.
  11. Ali_Hasan

    Done with Paper 3 Bio

    Judging from previous years' variants, no.
  12. Ali_Hasan

    Done with Paper 3 Bio

    Nobody on earth did 31 yet. ;)
  13. Ali_Hasan

    Done with Paper 3 Bio

    Oh ok, if that's the case then I already know. I just thought it's completely out of the circulatory system.
  14. Ali_Hasan

    Done with Paper 3 Bio

    What? I've never heard of valves other than in the heart.. Where are valves found other than heart?
  15. Ali_Hasan

    Need help in sequences in Maths Paper 4.

    Any tips regarding the "awkward" question at the end of any Paper 4? Like the question in October/November 2010 42 for example. I can't really understand sequences in paper 4 and I really need someone to explain. ;/
  16. Ali_Hasan

    Was the ICT p12 too easy or I'm just a genius?

    Light, Temperature and pressure.
  17. Ali_Hasan

    Was the ICT p12 too easy or I'm just a genius?

    But, in a wiki, everything is ordered {1,2,3} at the beginning. So why not a wiki?
  18. Ali_Hasan

    Was the ICT p12 too easy or I'm just a genius?

    It was an awesome paper, easy but slightly tricky. Variant 12 here. But: Was the chronological order Blog or Wiki? And why?
  19. Ali_Hasan

    IGCSE ICT Theory paper

    Can you send me the ppt file please? [email protected] Much appreciated!
  20. Ali_Hasan

    NeED immediate HELP for physics paper 1 ASAP

    I'd suggest revising the syllabus, then solving as much of the past exam papers as you possibly can. Because there are some questions that get repeated in some years. Plus, practice makes perfect. ;)
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