General Biology

In general, what is the ploidy (n) state of human cells?

Which of the following statements about parthenogenesis is correct?

A hermaphrodite is an animal that __________.

Which of the following is not a form of asexual reproduction?

Which reproductive method is universal among mammals?

In which of the following pairs are the terms mismatched?

Individuals clustered in the same area that release their gametes into the water at the same time are engaging in which of the following?

Some insect females are able to store sperm in __________ until environmental conditions are favorable for the development of their offspring.

An ovarian follicle undergoes several changes during the human female's menstrual cycle. Which of the following sequences is correct, beginning with the oocyte?

Immediately after ovulation into the coelom, an egg is collected into the __________.

How do egg cells enter the oviduct after ovulation?

Vestibular glands __________.

Where do developing sperm cells undergo meiosis?

The __________ is/are the site of testosterone production in the testis.

What is the final stage of labor?

A vasectomy is an effective technique for birth control in males because it __________.

If a woman wants to become pregnant, what is the optimal day on which to have sexual intercourse?

Pregnancy tests detect a hormone in a woman's urine that is present only when an embryo is developing in her uterus. This hormone is secreted by __________.

Through which of the following does a human sperm cell not have to pass in order to fertilize an egg?

A large number of hormones function in the human menstrual cycle, but only two of them are called female sex hormones. These are __________.

What is the source of the hormones that, when suddenly absent, are directly responsible for the onset of menstruation?

After the menstrual period, which of the following hormones is the first to increase significantly every 28 days or so, initiating the ovarian cycle?

Concentrations of which hormone stimulate the hypothalamus to increase or decrease hormones that stimulate sperm production in the testes?

After ovulation occurs, the empty follicle __________.

In many mammals, the testes are located outside the abdominal cavity within the scrotum because __________.

Which part of the male reproductive tract stores sperm as they mature?

Which structure is part of the excretory and reproductive systems in males?

Sperm cells have several components; the function of the acrosome is to __________.

Which part of the human sperm carries a haploid set of chromosomes?

In mammals, meiosis to produce the female egg cell is initiated in the __________.

From a single primary oocyte, oogenesis in a mammal will produce __________.

In spermatogenesis, each primary spermatocyte gives rise to __________sperm.

At what point does the secondary oocyte complete meiosis?

Which of the following statements about luteinizing hormone (LH) in the female reproductive system is correct?

Compared to polar bodies, the amount of cytoplasm found in an animal egg cell is __________.

Which of the following choices correctly lists the four phases of the sexual response cycle in their proper sequence?

In males, FSH __________.

Which of the following statements about oogenesis and spermatogenesis is correct?

Menstruation results in the discharge of __________.

The production of gametes                   . a. begins at puberty in males and females; b. requires that the testes of males produce semen; c. results in the production of diploid cells from haploid cells; d. begins at puberty in females; e. produces sperm and eggs that carry half the number of chromosomes as nongametes

An egg cell that is not fertilized follows which path? a. ovary, oviduct, uterus, cervix; b. ovary, uterus, oviduct, cervix; c. oviduct, ovary, cervix, uterus; d. oviduct, ovary, uterus, cervix; e. ovary, oviduct, cervix, uterus

What happens to the egg cell and the remains of the tissue it developed in at ovulation?

A sperm cell follows which path? a. seminiferous tubules, epididymis, vas deferens, urethra; b. urethra, vas deferens, seminiferous tubules, epididymis; c. seminiferous tubules, vas deferens, epididymis, urethra; d. epididymis, seminiferous tubules, vas deferens, urethra; e. epididymis, vas deferens, seminiferous tubules, urethra

Which of the following is mismatched? a. urethra: sperm passage; b. testes: hormone production; c. vas deferens: semen production; d. seminiferous tubules: sperm production

Which statement about human reproduction is true? (A)Fertilization occurs in the vagina. (B)Spermatogenesis and oogenesis both require normal body temperature. (C)An oocyte completes meiosis after a sperm penetrates it. (D)The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules.

Which of the following characterizes parthenogenesis? a. An individual may change its sex during its lifetime. b. Specialized groups of cells grow into new individuals. c. An organism is first a male and then a female. d. An egg develops without being fertilized.

During human gestation, rudiments of all organs develop a. in the first trimester. b. in the second trimester. c. in the third trimester. d. during the blastocyst stage.

For which of the following is the number the same in human males and females? a. interruptions in meiotic divisions b. functional gametes produced by meiosis c. meiotic divisions required to produce each gamete d. different cell types produced by meiosis

Which of the following is a true statement? a. All mammals have menstrual cycles. b. The endometrial lining is shed in menstrual cycles but reabsorbed in estrous cycles. c. Estrous cycles are more frequent than menstrual cycles. d. Ovulation occurs before the endometrium thickens in estrous cycles.

Peaks of LH and FSH production occur during a. the menstrual flow phase of the uterine cycle. b. the beginning of the follicular phase of the ovarian cycle. c. the period just before ovulation. d. the secretory phase of the uterine cycle.

Which of the following is not properly paired? a. seminiferous tubule—cervix b. vas deferens—oviduct c. testosterone—estradiol d. scrotum—labia majora

In male mammals, excretory and reproductive systems share a. the vas deferens. b. the urethra. c. the seminal vesicle. d. the prostate.

Which statement about human reproduction is false? a. Fertilization occurs in the oviduct. b. Spermatogenesis and oogenesis require different temperatures. c. An oocyte completes meiosis after a sperm penetrates it. d. The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules.