Need asap ! what is an internal stimuli? a. eating when hungry b. breathing hard when exercising because of a drop in oxygen levels c. drinking when thirsty d. wearing sunglasses to protect eyes from uv rays

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

Which 3 locations completed the triangle

Why is the industrial revolution important to us now? brainliest to the best answer