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  1. H

    bio preparation..

    1 month left......any good tips regarding bio preparation....which chapters are the most factual ones so that i should revise them from book
  2. H

    ::::::Biolody help--Gaseous exchange::::::::

    for diagnosis of tuberculosis doctors are doing sputum stain test.....in which they view the sputum under microscope to see if mycobacteria is present or not
  3. H

    ::::::Biolody help--Gaseous exchange::::::::

    well mucus can refer to bodily fluids from different areas of body as well but phlegm or sputum only from lungs
  4. H

    BIO HELP......

    plxx....somebody tell me abt endodermis.......last two points and can a prokaryote be multicellular :?:
  5. H

    help

    ya this was wat i thought.......also for constructive interference to occur the two distances must be integer multiples of lambda
  6. H

    help

    must reply for this last one.......?
  7. H

    help

  8. H

    help

    22. A boy blows gently across the top of a piece of glass tubing the low end of which is closed by his finger so that the tube gives its fundamental note of frequency, f. While blowing, he removes his finger from the lower end. The note he then hears will have a frequency of approximately A ¼ f...
  9. H

    help

    shud it be C....?
  10. H

    help

  11. H

    help

    ans in markscheme is A.........wanted to ask that option B is of diffraction grating????
  12. H

    faulty lamp...physxx

    http://www.xtremepapers.net/CIE/Interna ... 6_qp_2.pdf Q7...part b.......i dint got wat markscheme says
  13. H

    URGENT HELP NEEDED CHEMISTRY

    for 1st part find no. of moles using PV=nRT.......THEN equate n=.08/Mr......from here find Mr 2nd question seems a bit awkward.....wud be helpful if u could add litlle bit detail from the context
  14. H

    BIO HELP......

    describe the role of endodermis in roots? cn anybody explain me wat i hav to write for last two points given in markscheme
  15. H

    help

    bt i cannot understand why it is bubbled through ethene
  16. H

    help

  17. H

    BIO HELP......

    are you performing practicals in school lab or just solving them to get familiar?
  18. H

    BIO HELP......

    hmm..that sounds good.......bt wat about how to test....i mean we ll again wait 5 min for each lead conc.
  19. H

    BIO HELP......

    help....i need practical details of how to mantain ph constant during an experiment.......
  20. H

    BIO HELP......

    http://www.xtremepapers.net/CIE/Interna ... _qp_31.pdf CHEK b PART of Q1....he says modify the method u used in A.....in what way i cn modify the method........any valid suggestion?
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