A trait within an organism that is present but not expressed is called __________

When G. Stanley Hall described adolescence as a time of "storm and stress," he meant that teenagers:

a) put society under a lot of stress. b) are moody, sensitive, and prone to take risks. c) have a stressful life. d) cause parents a lot of stress.

If a change of one unit in variable X is accompanied by a constant change in variable Y,

then X and Yare _____ related. a. not b. linearly c. nonlinearly d. correlationally