Explian why blood group o
can be given to any one?

In most cases, O-negative blood can be safely given to anyone because it does not contain any of the major antigens that can trigger a severe immune response, known as a transfusion reaction. In a transfusion reaction, antibodies in the recipient's bloodstream attack antigens on the donor's red blood cells.

Explanation:

i just did the test

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.