Odontology would not be useful for identification of victims of a huge earthquake identification of individuals buried in a mass grave discovered after a war identification of victims found after the burning of a gas tanker identification of a perpetrator who left behind several cigarette butts and a trail of blood

The practice of forensic odontology, a branch of forensic science can be useful in the identification process in all the other options given above, except in the identification of a perpetrator who left behind several cigarette butts and a trail of blood. 

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!