Precise data on individual's sexual identity is difficult because
A) individuals who identify themselves as heterosexual also indicate that they have had sexual activities with someone of the same sex.
B) Many self-identified homosexuals report having a sexual experience with someone of the opposite sex.
C) Many people change their sexual identity over the course of their life.
D) all of the above
Question 2
In ______ the President extended some partnership rights of federal workers in same-sex relationships.
A) 1974
B) 1989
C) 1995
D) 2009
Acromegaly in one individual from a pair of identical twins.
Graphing Psychological Data
Kaplan’s Three-Stage Model of Sexual Response
Type II curve. Mortality does not vary with age. Data for five-lined skink (Eumeces fasciatus).
Sexual Selection: Stalk-Eyed Flies
Sexual Reproduction in Plants