In diffusion, movement of particles across a membrane is driven by differences in
a. force.
b. concentration.
c. size.
d. shape.

Through an uplift under the earth's crust at a divergent boundary a is formed. a. cliff c. plateau b. fault d. mountain select the best answer from the choices provided a b c d i know the answer is not b

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.

Which statement best describes the first stage of cellular respiration? check all that apply