.gov is the current domain extension type used by most United States government or government supported sources. You can trust these sources to be, if not accurate, then at least backed by the majority of the US population and governing power as the most commonly perceived knowledge in that sector.
Because semen swims upstream. The bladder is not located above the vagina (internally). If the ejaculation takes place in the vagina, the semen will swim up towards the cervix.
Answer:mental life; observable behavior
Explanation: Mental life has a lot to do with how psychologists focus more on the physiological research in the 1920s and 1960s, but as times goes by, they emphasize more on observable behavior. Because both mental life and observable behavior work together for a good psychological result.
