1. How is sexual orientation defined?
   What percentage of humans identify as homo or bisexual?

-the attraction to the opposite, same, or both sexes.
-approximately 10% worldwide, 20% in the U.S.

2. Is sexual orientation related to psychological well-being?

Not related to mental health, however women tend to change categories more frequently and men tend to stay in one. People can be plagued with societal ills, but no, it is not an illness in itself.

3. What variables are most predictive of homosexuality?

-children taking interest in activities of opposite sex
-right-handed males with older brothers tend to be more likely to be homosexual

4. Are same-relations observed in other species?

Yes, over 1500 other species, including flamingos, insects, monkeys, and bears

5. Explain brain information on gays

-In gay men and straight women-normal sized hemispheres
-In lesbians and straight men-right hemisphere is larger

6. Do Gay genes exist?

-they are thought to exist
-more than 1 gene
-homosexuality does run in families
-created with experiments (fruit flies mimicking opposite gender)

7. what are biological correlates of sexual orientation? (3 of them and 1 example for each)

-Brain differences(brain asymmetry is greater in straight men)
-genetic influences(shared sexual orientation is higher among identical twins than fraternal twins)
-prenatal hormone differences (right handed men with older brothers are more likely to be gay)

8. Why is sexual orientation so difficult to change?

we don't know for sure what causes it, and we are pretty sure that it is genetic

9. Who was B.F. Skinner?

scientist who studied Thorndike's law of effect

10. What is the law of effect?

behaviors that are followed by a favorable consequence are more likely to be repeated