Blood fraction remaining unchanged after circulation through kidney is

Which fraction of blood changes after circulation through kidney?

Blood circulation is open in

Blood circulation in insects :

A charged particle moves through a magnetic field in a direction perpendicular to it. Then the: (1.)acceleration remain unchanged (2.)velocity remains unchanged (3.)speed of particles remain unchanged (4.)direction of particles remain unchanged

What is single circulation of blood?

Open blood circulation is found in

Open blood circulation is found in

Open blood circulation is found in

Open blood circulation is found in