Examine visible trauma marks and other evidence found at the crime scene and make a preliminary hypothesis on the cause and manner of death.

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.

geologic time scale (for gradpoint) =)

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?