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  1. H

    A level Biology: Post your doubts here!

    what is bothering me the most is the control ques. i have learned how to prepare controls and even told my friends how to prepare them before entering the exam hall but still i was the one who did it wrong!! when stupidness overloads !! :cry:
  2. H

    A level Biology: Post your doubts here!

    i did a lot of stupid mistakes in p5 i knew the correct answer to 2 of them but when the invigilator said there was 15 min. left every thing just vanished ?! brain washing hah !!
  3. H

    A level Biology: Post your doubts here!

    i wrote that we have to check for the rate of reaction touch the graph and then check for the corresponding conc.
  4. H

    A level Biology: Post your doubts here!

    i got very confused about the conclusions in the 2nd ques
  5. H

    A level Biology: Post your doubts here!

    anyone did paper 5?
  6. H

    A level Biology: Post your doubts here!

    in IVF a woman is first injected with LH and FSH like hormones to stimulate super ovulation ie. several follicles will mature at the same time .. the oocytes are then harvested from follicles prior to ovulation using a microscopic needle then the semen is collected from the male partner and...
  7. H

    A level Biology: Post your doubts here!

    after 24 hrs!
  8. H

    good for u!! well then good luck with the rest of ur exams

    good for u!! well then good luck with the rest of ur exams
  9. H

    hey how was ur exam??

    hey how was ur exam??
  10. H

    well I took english last year

    well I took english last year
  11. H

    ur prayers plz

    ur prayers plz
  12. H

    nope Bio A level

    nope Bio A level
  13. H

    A level Biology: Post your doubts here!

    is the answer C?
  14. H

    A level Biology: Post your doubts here!

    Oh u r most wel.:D
  15. H

    A level Biology: Post your doubts here!

    a friend's notes for paper 5 hope they help!
  16. H

    A level Biology: Post your doubts here!

    because lysosomes mainly contain hydrolytic enzymes so the enzyme activity in lysosomes is higher than other organelles
  17. H

    A level Biology: Post your doubts here!

    do error bars extend 2 standard errors above and 2 standard errors below the mean value or only one above and 1 below?!
  18. H

    A level Biology: Post your doubts here!

    well thanks :p people here helped me a lot this year and the year before so i thought i should be of some use!
  19. H

    A level Biology: Post your doubts here!

    well nitrogen fixing bacteria in root nodules need anaerobic conditions but this is achieved as the legumes mop up the oxygen in the soil this means they can grow in aerated soils but in anaerobic conditions however the nitrifying bacteria needs aerobic conditions and denitrifying bacteria can...
  20. H

    A level Biology: Post your doubts here!

    hope this make things clear
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