Biology Exam-4 Chapter 27

32 Questions | By Akjohnson8363 | Updated: Mar 19, 2022 | Attempts: 246

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1.

Between 1980 and 2003, the rate of multiple births in the United States rose by 87%, primarily as a result of
- A.
  
  A rise in the quality of prenatal care.
- B.
  
  Increased exposure to new sources of radiation.
- C.
  
  C) better physical condition of potential mothers.
- D.
  
  Increased use of fertility drugs.
- E.
  
  Better nutrition available for potential mothers.
2.

Which of the following statements best characterizes asexual reproduction?
- A.
  
  It allows animals that do not move around to produce offspring without finding mates.
- B.
  
  Offspring without finding mates. B) It allows an animal to produce many offspring quickly
- C.
  
  It produces genetically uniform populations
- D.
  
  It allows a population to expand quickly to exploit available resources.
- E.
  
  It saves the time and energy required to produce gametes.
3.

Which of the following statements regarding sexual reproduction is true?
- A.
  
  Sexual reproduction allows animals to expand their populations faster than asexual reproduction
- B.
  
  Populations of organisms that reproduce through sexual reproduction generally have difficulty adapting to changing environments.
- C.
  
  Sexual reproduction produces 2n gametes.
- D.
  
  Sexual reproduction generates greater genetic variation than asexual reproduction.
- E.
  
  Sexual reproduction creates an individual that is a genetic copy of one parent.
4.

Hermaphrodites are animals that
- A.
  
  Must fertilize themselves
- B.
  
  Have abnormal reproductive systems
- C.
  
  Possess both male and female reproductive systems.
- D.
  
  Develop from unfertilized eggs.
- E.
  
  Have the gonads of one sex but the external appearance of the other.
5.

Reproductive systems with external fertilization are most common in
- A.
  
  Animals that are widely dispersed
- B.
  
  Populations with many more females than males.
- C.
  
  Populations with many more males than females
- D.
  
  Terrestrial animals
- E.
  
  Aquatic animals
6.

Which of the following statements about the reproductive system of human females is true?
- A.
  
  The corpus luteum secretes progesterone, which helps maintain the uterine lining during pregnancy
- B.
  
  The labia minora are a pair of thick, fatty ridges that protect the entire genital region.
- C.
  
  The cervix is an important structure of sexual arousal
- D.
  
  In human females, eggs develop within the uterus.
- E.
  
  After 9 months of development, an embryo is called a fetus.
7.

The human egg is swept through the oviduct toward the uterus by
- A.
  
  Rhythmic contractions of the uterus
- B.
  
  Rhythmic contractions of the oviduct
- C.
  
  The beating of the eggʹs flagella
- D.
  
  The beating of the eggʹs cilia
- E.
  
  The beating of cilia in the oviduct
8.

Fertilization in the female reproductive tract most often takes place in the
- A.
  
  Uterus
- B.
  
  Ovary.
- C.
  
  Upper third of the oviduct.
- D.
  
  Lower third of the oviduct.
- E.
  
  Vagina.
9.

The embryo implants in the ________ of the uterus
- A.
  
  Myometrium
- B.
  
  Exometrium
- C.
  
  Perimetrium
- D.
  
  Endometrium
- E.
  
  Epimetrium
10.

Human testes are positioned in an external sac rather than in the abdominal cavity
- A.
  
  So the testes can be kept away from the urinary bladder
- B.
  
  To shorten the distance that semen must travel during ejaculation
- C.
  
  To shorten the distance that sperm must swim during insemination
- D.
  
  So the testes can enlarge during sexual maturation
- E.
  
  So the testes can be kept cooler than the bodyʹs interior
11.

Men who take very long, hot baths are likely to
- A.
  
  Produce healthier sperm
- B.
  
  Produce more sperm
- C.
  
  Produce fewer sperm
- D.
  
  Produce more sperm and ones that are healthier.
- E.
  
  Produce nonfunctional sperm.
12.

After being produced in the testes, sperm mature further in a structure called the
- A.
  
  Epididymis
- B.
  
  Seminal vesicle
- C.
  
  Vas deferens
- D.
  
  Bulbourenthral gland
- E.
  
  Prostate
13.

Which of the following produces a thick fluid containing fructose, which is used for energy by sperm?
- A.
  
  Seminal vesicles
- B.
  
  Vas deferens
- C.
  
  Bulbourethral gland
- D.
  
  Prostate gland
- E.
  
  Epididymis
14.

Which of the following statements regarding spermatogenesis and oogenesis is true?
- A.
  
  Spermatogenesis begins at birth
- B.
  
  Meiosis in spermatogenesis produces two cells from one primary spermatocyte
- C.
  
  Oogenesis is not completed without stimulation by estrogen.
- D.
  
  Meiosis in oogenesis produces one mature egg from one primary oocyte
- E.
  
  Oogenesis begins at puberty
15.

Which of the following statements comparing spermatogenesis and oogenesis is true
- A.
  
  During oogenesis, there is a resting period that lasts for about 30 days
- B.
  
  Spermatogenesis, but not oogenesis, is an example of gametogenesis
- C.
  
  Spermatogenesis and oogenesis rely upon mitosis to produce gametes
- D.
  
  Men, but not women, can produce gametes throughout their lives.
- E.
  
  During oogenesis, four cells are produced with each sharing equally the cytoplasm from the parent cell.
16.

Menstruation
- A.
  
  Is triggered by HCG
- B.
  
  Is triggered by an increase in the levels of estrogen and progesterone.
- C.
  
  Is triggered by an LH surge.
- D.
  
  Coincides with the postovulatory phase of the ovarian cycle.
- E.
  
  Coincides with the beginning of the pre-ovulatory phase of the ovarian cycle.
17.

In human females, the ovarian cycle begins when
- A.
  
  The level of progesterone drops precipitously
- B.
  
  The levels of estrogen reach their maximum
- C.
  
  The hypothalamus increases its release of FSH and LH.
- D.
  
  The hypothalamus stimulates the anterior pituitary to increase its output of FSH and LH.
- E.
  
  The levels of FSH and LH drop precipitously
18.

Which of the following hormones stimulates the growth of an ovarian follicle
- A.
  
  Releasing hormone
- B.
  
  FSH
- C.
  
  Estrogen
- D.
  
  Progesterone
- E.
  
  LH
19.

A decrease in ________ is followed by the gradual degradation of the corpus luteum
- A.
  
  Releasing hormone
- B.
  
  Estrogen
- C.
  
  Progesterone
- D.
  
  FSH
- E.
  
  LH
20.

Which of the following types of pathogens cause sexually transmitted diseases that cannot be treated with antibiotics?
- A.
  
  Viruses
- B.
  
  Syndromes
- C.
  
  Spriaochetes
- D.
  
  Bacteria
- E.
  
  Fungi
21.

Which of the following STDs is caused by a virus that can also cause cancer?
- A.
  
  Candidiasis
- B.
  
  Gonorrhea
- C.
  
  Syphilis
- D.
  
  Trichomoniasis
- E.
  
  Genital warts
22.

The only totally effective way to prevent the spread of STDs is through
- A.
  
  Using birth control pills
- B.
  
  Using a diaphragm and spermicide
- C.
  
  Using condoms.
- D.
  
  Abstaining from sexual intercourse
- E.
  
  Using condoms and spermicides
23.

Sterilization, in which the sperm is surgically prevented from reaching the egg, is accomplished by
- A.
  
  MAPs.
- B.
  
  Cervical capping
- C.
  
  Vasectomy.
- D.
  
  Mifepristone.
- E.
  
  The rhythm method.
24.

Which of the following statements regarding birth control is true?
- A.
  
  Natural family planning is generally reliable.
- B.
  
  Morning-after pills taken within three days of unprotected intercourse prevent fertilization or implantation about 75% of the time.
- C.
  
  Birth control pills work primarily by preventing fertilization and implantation.
- D.
  
  Spermicides used alone are generally reliable.
- E.
  
  The most widely used birth control pills contain a combination of FSH and LH
25.

Which of the following generates the ATP that is required for movement of the spermʹs tail?
- A.
  
  Mitochondria in the sperm tail
- B.
  
  The sperm plasma membrane
- C.
  
  Mitochondria in the sperm head
- D.
  
  Mitochondria in the neck and middle piece
- E.
  
  The acrosome