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Recent content by silentkiller97

  1. silentkiller97

    Biology paper 11 gt

    what were the layers that control blood flow through an artery
  2. silentkiller97

    A level Biology: Post your doubts here!

    SORRY IT MIXED
  3. silentkiller97

    A level Biology: Post your doubts here!

    ! ! ---> ! | ! | ----> ! | | | | | ! | ! ! ! | ! | ! | | | | | ! | ! = N15 | = N 14 (0%) (100%) (50% hybrid DNA's ) Hybrid DNA = ONE WITH BOTH STRANDS ( N14 | AND N15 ! )
  4. silentkiller97

    A level Biology: Post your doubts here!

    please specify the part you dont understand :)
  5. silentkiller97

    A level Biology: Post your doubts here!

    Hybrid DNA means the DNA with a Strand of N14 and N15 both When once divided both DNA are hybrid meaning 100% hybrid DNA. When once more allowed to grow in N14, 2 are hybrid DNA (having both N14 & N15 strands) and 2 are non hybrid ( those which have both same N14 strand). So this has 50 % hybrid...
  6. silentkiller97

    Physics P1, P2 & P4 past papers chapter wise! :D

    where are the answers of P1 here.
  7. silentkiller97

    Help in biology marking..

    P1(60 of 200) + p3(100 of 200) + p6 (40 of 200) ( 35 ) + (45/80 *100) + 35 = 126/200 threshold for A starts from 124 in June 2012 so you are an A or B but C is conformed not to come GOOD LUCK
  8. silentkiller97

    bio p1 which chemical was used to test for cells respiring aerobically??

    I wrote D as there will be no blood worms at A and for chemical i wrote limewater which in human cells can work but in anerobic microorganisms no:( as they also produce co2
  9. silentkiller97

    bio p1 which chemical was used to test for cells respiring aerobically??

    and were the blood worms in A or at D??
  10. silentkiller97

    DONE WITH BIOLOGY PAPER 11

    it was very easy
  11. silentkiller97

    Results date

    I am now going to finish my exams
  12. silentkiller97

    Physics, Chemistry and Biology: Post your doubts here!

    it is D as all other choices are losing/gaining water by evaporation. then osmosis in a leaf takes place within walls of the connected cells
  13. silentkiller97

    Physics 31, If 15 more minutes were provided

    if the liquid column would had been higher to the right side where atmospheric pressure was acting then you would had been right. here the pressure was certainly lower than atmospheric pressure as the opened side exerted atmospheric pressure which forced the liquid to rise from other side
  14. silentkiller97

    Results date

    from where do we get the user name and pasword for CIE Direct
  15. silentkiller97

    Exams!!

    cie 2013 session of my vanishing, self-destructing, and abating at 5th june only three left
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