what is the single largest organ of the human body?

question 5 options:

heart

skin

liver

stomach

What is a self-improvement strategy for a parent with a busy schedule? a. spend more time watching exercise shows on tv. b. start exercising when the kids are grown. c. use a calendar to plan daily exercise. d. write in a journal about the importance of exercise.

Which of these is most likely to prevent pregnancy? a. tracking of female body temperature to identify ovulation times b. proper condom use c. male withdrawal before ejaculation d. proper spermicide use

What a self improvement for a busy person who had difficulty finding time to exercise/ dropping out of clubs and activities/ refusing social invitations from friends/ scheduling daily invitation activity/ sleeping fewer hours at night