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  1. thu

    AS Biology P1 MCQs Preparation Thread

    Good luck y'all. Our last hours to freedom! (i mean if u only have this pp left, like me :D) im off to bed with biology dreams..
  2. thu

    AS Biology P1 MCQs Preparation Thread

    Why can't this be A but B? Thanks!
  3. thu

    AS Biology P1 MCQs Preparation Thread

    why would net primary productivity involves respiration energy (5000) not the energy that gets passed on to herbivore (1200)?
  4. thu

    AS Biology P1 MCQs Preparation Thread

    w11_12 Q39. How do we calculate this percentage of energy?
  5. thu

    AS Biology P1 MCQs Preparation Thread

    w11_12 Q40. Why is it D?
  6. thu

    AS Biology P1 MCQs Preparation Thread

    which paper is the 3rd pic from. is the ans A in the scheme?
  7. thu

    AS Biology P1 MCQs Preparation Thread

    for you 2nd concern, nitrates are used in making the 4 bases adenine, thymine, cytosine and guanine. (see the picture down here). that's all i can help :D
  8. thu

    AS Biology P1 MCQs Preparation Thread

    q21 from w05. Why is it C not D?
  9. thu

    AS Biology P1 MCQs Preparation Thread

    w10_12 q9. Can anyone clear me why it's D?
  10. thu

    AS Biology P1 MCQs Preparation Thread

    Q6 from w10_12. Can anyone explain why ans is B please?
  11. thu

    AS Biology P1 MCQs Preparation Thread

    i think because it can also bind to other inhibitors. since it's saying one 'kind' not one 'shape'
  12. thu

    AS Biology P1 MCQs Preparation Thread

    the net primary production is reduced by 10% after each arrow. so from phytoplankton it's 1300, at herbivorous is 130, at carnivorous is 13, at small fish is 1.3, tuna is 0.13 so answer is A :D
  13. thu

    AS Biology P1 MCQs Preparation Thread

    This is from paper w10_11, Q22. The table shows the percentages of nitrogenous bases in four samples of nucleic acids. Which base is adenine? percentage of nitrogenous bases sample: A B C D uracil 1 19 31 30 19 nil 2 27 23 24 26 nil 3 25 25 nil 25 25 4 17 32 33 18 nil Guys please help! I...
  14. thu

    AS Biology P1 MCQs Preparation Thread

    I dont get why the ans is C. I think it's D cos all male bees should be genetically identical :(.
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