Asolution that has the same osmotic concentration as a cells cytoplasms

isotonic

Explanation:

If the solute concentration of the cell and that of its surrounding medium are the same there will be no net flow of solvent in either directions. In this case the external solution is said to be isotonic to the cell since the osmotic pressure is the same.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms