What is the specific name which the change or reaction an organism has to a stimulus?

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose