2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Sample Paper - 4

  • question_answer
    Give two differences between arteries and veins.

    Answer:

    Differences between arteries and veins:
    S. No. Arteries Veins
    (i) Thick walls which are elastic. Thin walls which are less elastic.
    (ii) Have no valves and they transport oxygenated blood (except pulmonary artery). Have valves and they transport deoxygenated blood (except pulmonary vein).


You need to login to perform this action.
You will be redirected in 3 sec spinner