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  1. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Yeah. Most probably.(y) The radicle shows positive and the plumule shows negative geotropism.
  2. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Yup! you are right, the plumule does show negative geotropism.
  3. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    14) B- Since it's the main area for photosynthesis. 15) C - xylem
  4. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    No prob. You know, I ain't really used to these shortcuts like 'k' and 'btw', so it took me some time to make out what you meant by 'ty'. ( if i am not wrong, it's thank you right?):)
  5. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    The germinating seeds use up the oxygen present in the tube, so the pressure acting upon the coloured water becomes less and therefore the air pressure acting on the water causes the water level to rise. This does not occur in the other tube, since no oxygen is being used from the tube. (as...
  6. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    Well, the question says inert electrodes, copper isn't inert, platinum is. So, the correct response is B.
  7. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    You are forgetting the block of jar containing auxin.
  8. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Why C?
  9. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    I think it's B, since auxins inhibit growth in the shoot, so the side with the agar will grow slowly and the plant will grow towards the right side.
  10. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    The plant does not grow due to its tip. It only shows directional growth due to it's tip.
  11. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    It's Potassium iodide(B).If you remember the test for anions, adding lead nitrate to acidified iodides give a yellow ppt.
  12. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    That's A Levels I suppose. This thread is for IGCSE.
  13. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Oops! sorry. Checked the wrong one. By the way why does the ms have the title 0625 Accounting.
  14. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Yup, B
  15. Maz

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    I thought the same thing too,but the ms says it's B. Red at the anode and purple at the cathode.
  16. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    Bats.
  17. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    Don't go by externel looks of the arteries in our textbooks. They may look like as if they are made up of one typr of cells, but are really made up of different types (and so are veins).
  18. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    If I am not wrong you are confused whether arteries are tissues or organs, right? Tissues are a group of similar cells, while arteries are made of different types of tissues ie different types of cells. eg. connective tissue and muscular tissue. (by the way this is just extra info)
  19. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    The other options may be correct, but not necessarily. That's why the question highlights the term 'must'. So, although both of them may be in the same period, but they must have the same number of electrons in their first shell.
  20. Maz

    Physics, Chemistry and Biology: Post your doubts here!

    Chemistry: w10 - qp.12, q. 16. Why does the temperature increase ?
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