What replaced humans in the role of guru?

Which of the following activities would conserve the most energy? installing a dimmer switch on a light using a blender instead of a food processor hanging clothes to dry on a clothesline instead of ironing them opening a window instead of turning on the air conditioning setting your computer's screen saver to turn on after less time has elapsed

Which statement indicates one difference between the gene that codes for insulin and the gene that codes for testosterone in humans?

** psychology ** in what type of behavior does an individual adopt the beliefs of a person whom he or she admires