1.In hot weather the urine becomes?
2.In what ways is water lost from the body?
3.Blood in the renal vein differs from that in the renal artery by having?
4.If the concentration of solutes in the blood rises above a certain level, then?
5.State two procedures which are used to reduce the chances of a kidney graft being rejected.
6.What is latex?
7.Write about making of chewing gum.