What is the difference between the sex chromosomes in human males and females? a males have y while females have x. b females have y while males have x. c males have xx while females have xy. d females have xx while males have xy.

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.

ya the other dude is right