Which of the following would be a good adaptation for an organism that lives in the intertidal zone

Isee you do not have options here, i hope you find my answer .  organisms  that live in the intertidal zone need to have some  kind of adaptions and they are; 1.) a  dramatic change  in the temperature,  2.) a dramatic change in moisture, and3.) salinity must be able to withstand  the force of wave action.  good luck : )