Na mental rotation experiment: accuracy decreases as degree of rotation decreases up to 180 degrees. reaction time decreases as degree of rotation increases up to 180 degrees. accuracy decreases as degree of rotation increases at all degrees of rotation. reaction time increases as degree of rotation increases up to 180 degrees.

Standard anatomical position is a way of describing the anatomy of an organism so that it is easy to understand what part of the body is being talked about no matter what direction the organism is facing or where its appendages/limbs are. In humans, standard anatomical position is defined as standing up straight with the body at rest.

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.