question

Primary sex characteristics are to _______ secondary sex characteristics are to _______

answer

Female ovaries; deepened male voice

question

Puberty in women is most closely related to the onset of

answer

Menarche

question

The first ejaculation is to an adolescent boy as ________ is to an adolescent girl

answer

Menarche

question

The body structures that enable reproduction are the

answer

Primary sex characteristics

question

An example of a primary sex characteristic is a

answer

Woman's ovaries

question

Non-reproductive sexual characteristics such as the deepened male voice and male facial hair are called

answer

Secondary sex characteristics

question

Which of the following is an example of a secondary sex characteristic?

answer

Male facial hair

question

The term menarche refers to the

answer

first menstrual period

question

A male's first ejaculation

answer

Usually occurs as a nocturnal emission

question

The prenatal development of the external male sex organs is stimulated by

answer

Testosterone

question

A baby girl receives a(n)

answer

X chromosome from her father and mother

question

Prenatal testosterone secretions exert one of their earliest influences on

answer

Brain organization

question

Individuals who are both with incomplete or unusual combinations of male and female physical features are referred as

answer

Intersex

question

The case of David Reimer suggests that for intersex children

answer

There are no clearly correct decisions that are best for all children

question

AIDS results from the transmission of ________ from an infected sexual partner

answer

HIV

question

Infections of which sexually transmitted disease can be greatly reduced by a vaccination

answer

HPV

question

Rates of adolescents sexual intercourse are

answer

Similar in Western Europe and Latin America

question

Sexually active unmarried teens are more likely to use contraceptives if they

answer

Are in an exclusive sexual relationship involving open communication

question

Premarital sexual activity is higher among American teens who

answer

Consume rather than abstain from alcohol (teenagers who drink)

question

Lower rates of teen pregnancy have been observed among adolescents

answer

Who are actively religious

question

Lower rates of pregnancy have been observed among teens who have

answer

Participated in a service learning program as tutors or teacher aides

question

Compared with girls living in father-absent families, girls with fathers present are less likely to experience

answer

Teen pregnancy

question

Isaac, a 25 year old law student, is heterosexual; his brother Chaim, a 21 year old college senior, is homosexual. The brothers obviously differ in their

answer

Sexual orientation

question

Our sexual attraction toward members of either the same sex or the opposite sex is called

answer

Sexual orientation

question

A homosexual orientation is

answer

Very persistent and difficult to change

question

More than a dozen national surveys in the early 1990s indicated that in both Europe and the United States, about ______ percent of men are gay and about ________ percent of women are lesbian

answer

3% and 1-2%

question

Homosexuality itself is not considered a mental disorder. However, gays and lesbians are at increased risk for which of the following?

answer

Attempting suicide

question

Women are somewhat more likely than men to feel bisexual attractions. This best illustrates gender difference in thier

answer

Erotic plasticity

question

Gender differences in erotic plasticity are best illustrated by the fact that women

answer

Tend to be more changeable than men in sexual orientation

question

Research on the environmental conditions that influence sexual orientation indicates that

answer

The reported backgrounds of homosexuality and heterosexuals are similar

question

Researchers suggest that the fraternal birth-order effect is a result of

answer

Maternal immune systems

question

Simon LeVay discovered that a neural cluster located in the _______ was larger in heterosexual men than in homosexual men

answer

Hypothalamus

question

Evidence that brain anatomy differences account for variations in sexual orientation is provided by the fact that these brain differences

answer

Originate at about the time of or even before birth

question

When exposed to a scent derived from a men's sweat, gay and straight men responded differently in the area of the _________ that governs sexual arousal

answer

Hypothalamus

question

Research on the causes of homosexuality suggests that

answer

Genetic influence plays a role in sexual orientation

question

By manipulating a single gene, scientists have been able to control sexual orientation in

answer

Fruit flies

question

If pregnant sheep are injected with ________ during a critical gestation period, their female offspring will show homosexual behavior

answer

Testosterone

question

Research has found that an animal's sexual orientation can be altered by

answer

Manipulations of prenatal hormone conditions

question

A biological influence on homosexuality is most clearly seen from evidence of

answer

Sexual relations between same-sex partners in several hundred different animal species

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