Which way of moving molecules across a membrane requires energy?
a. meiosis
b. diffusion
c. osmosis
d. active transport

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

In apex! a liquid heated beyond a certain temperature becomes

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d