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
The sexual cycle of flowering plants involves alternation of sporophyte and gametophyte generations.
By middle adulthood, most individuals and established and confident in their careers
Gorillas live in one-male or multimale groups, from which females emigrate at sexual materity.
(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko
A model of the 70S ribosome based upon early structural data