Explain the effect of hormones on a person's behavior. Describe the influence of heredity on human behavior.
http://www.google.com/search?as_q=hormones+human+behavior&hl=en&num=10&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&as_dt=i&as_sitesearch=&as_rights=&safe=active
http://www.google.com/search?hl=en&lr=&safe=active&as_qdr=all&q=allintitle%3A+heredity+human+behavior