Which one of these is not an example of intracellular communication?

a. a finger is suddenly removed from a hot object.

b. a bone cell maintains homeostasis.

c. molecular movement occurs within a cell.

d. a signal is translated to cause a muscle to relax.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.