Question 1

What is the most likely evolutionary explanation for the whiptail desert lizards evolving a female only reproduction?

Accepted Answer

A)  This species is probably going extinct 
B)  This is not related to evolution but a biochemical anomaly 
C)  This is not at all unusual since most reptiles are asexual 
D)  The desert is uniform, and variation is of little or no advantage and a waste in energy 
E)  Such a switch in mating behavior is easily understood as a crossing-over in chromosomes 
A)  This species is probably going extinct 
B)  This is not related to evolution but a biochemical anomaly 
C)  This is not at all unusual since most reptiles are asexual 
D)  The desert is uniform, and variation is of little or no advantage and a waste in energy 
E)  Such a switch in mating behavior is easily understood as a crossing-over in chromosomes D

Question 2

In the male reproductive system,the Sertoli (sustentacular)cells

Accepted Answer

A)  produce sperm cells through meiosis. 
B)  activate the sperm cells so they can swim rapidly. 
C)  nourish the cells that produce sperm cells. 
D)  regulate the rate of sperm production. 
E)  produce an alkaline fluid added to the semen. 
A)  produce sperm cells through meiosis. 
B)  activate the sperm cells so they can swim rapidly. 
C)  nourish the cells that produce sperm cells. 
D)  regulate the rate of sperm production. 
E)  produce an alkaline fluid added to the semen. C

Question 3

Which of the following is NOT involved in production of semen?

Accepted Answer

A)  seminal vesicles. 
B)  bulbourethral gland. 
C)  graafian follicle. 
D)  testes. 
E)  prostate gland. 
A)  seminal vesicles. 
B)  bulbourethral gland. 
C)  graafian follicle. 
D)  testes. 
E)  prostate gland. C

Question 4

The outermost layer of differentiating sex cells in the testes,called ________,divide by ordinary mitosis.

Accepted Answer

The answer of The outermost layer of differentiating sex cells...

Question 5

The acrosome functions to

Accepted Answer

A)  Contain enzymes that help a sperm head "digest" its way into an egg 
B)  Increase the sperm's motility 
C)  Direct the sperm to the egg 
D)  Transport the chromosomes into the egg 
E)  Store energy for swimming to the egg 
A)  Contain enzymes that help a sperm head "digest" its way into an egg 
B)  Increase the sperm's motility 
C)  Direct the sperm to the egg 
D)  Transport the chromosomes into the egg 
E)  Store energy for swimming to the egg

Question 6

The egg grows in size well beyond the surface-area-to-volume restrictions of other single cells because it

Accepted Answer

A)  Is the germ line and is therefore not restricted by this law 
B)  Relies on a placenta to exchange gases and nutrients 
C)  Has a gradually diminishing metabolic rate and often relies on supporting cells to supply nutrition 
D)  Lacks mitochondria 
E)  Does not become living until it is fertilized; this is the definition of "life." 
A)  Is the germ line and is therefore not restricted by this law 
B)  Relies on a placenta to exchange gases and nutrients 
C)  Has a gradually diminishing metabolic rate and often relies on supporting cells to supply nutrition 
D)  Lacks mitochondria 
E)  Does not become living until it is fertilized; this is the definition of "life."

Question 7

The proximate cues that trigger labor are not fully understood; however,________ appears to be involved.

Accepted Answer

placental

Question 8

What is the critical difference between gemmulation and fragmentation?

Accepted Answer

A)  Gemmulation is sexual and fragmentation is asexual 
B)  Gemmulation is haploid and fragmentation is diploid 
C)  If sponges fragment, it is called gemmulation 
D)  Fragmentation involves providing a resistant layer of cells for a capsule; gemmulation is merely breaking off chunks of tissue to grow a new organism 
E)  Gemmulation involves providing a resistant layer of cells for a capsule; fragmentation is merely breaking off chunks of tissue to grow a new organism 
A)  Gemmulation is sexual and fragmentation is asexual 
B)  Gemmulation is haploid and fragmentation is diploid 
C)  If sponges fragment, it is called gemmulation 
D)  Fragmentation involves providing a resistant layer of cells for a capsule; gemmulation is merely breaking off chunks of tissue to grow a new organism 
E)  Gemmulation involves providing a resistant layer of cells for a capsule; fragmentation is merely breaking off chunks of tissue to grow a new organism

Question 9

Which is NOT true about estrogen?

Accepted Answer

A)  estrogen stimulates release of FSH. 
B)  estrogen causes the endometrium to thicken. 
C)  estrogen causes the endometrium to become vascular and glandular. 
D)  estrogen causes a positive feedback on the hypothalamus to secrete GnRH. 
E)  estrogen causes a negative feedback on the anterior pituitary gland. 
A)  estrogen stimulates release of FSH. 
B)  estrogen causes the endometrium to thicken. 
C)  estrogen causes the endometrium to become vascular and glandular. 
D)  estrogen causes a positive feedback on the hypothalamus to secrete GnRH. 
E)  estrogen causes a negative feedback on the anterior pituitary gland.

Question 10

The female clitoris is homologous to the male

Accepted Answer

A)  Vas deferens 
B)  Glans penis 
C)  Scrotum 
D)  Prostate gland 
E)  Testes 
A)  Vas deferens 
B)  Glans penis 
C)  Scrotum 
D)  Prostate gland 
E)  Testes

Question 11

Days 6-13 of a 28-day uterine cycle is the

Accepted Answer

A)  secretory phase. 
B)  menstrual period. 
C)  proliferative phase. 
D)  ovulation period. 
E)  fertilization period. 
A)  secretory phase. 
B)  menstrual period. 
C)  proliferative phase. 
D)  ovulation period. 
E)  fertilization period.

Question 12

Parthenogenesis is

Accepted Answer

A)  asexual but haploid by means of internal self-fertilization. 
B)  an asexual means of reproduction involving budding. 
C)  asexual reproduction by splitting or fission into several new individuals. 
D)  reproduction where unfertilized eggs develop into mature individuals without fertilization. 
E)  sexual reproduction by cross-fertilization between hermaphrodites. 
A)  asexual but haploid by means of internal self-fertilization. 
B)  an asexual means of reproduction involving budding. 
C)  asexual reproduction by splitting or fission into several new individuals. 
D)  reproduction where unfertilized eggs develop into mature individuals without fertilization. 
E)  sexual reproduction by cross-fertilization between hermaphrodites.

Question 13

An egg is ovulated from a

Accepted Answer

A)  Primary follicle 
B)  Tertiary follicle 
C)  Corpus luteum 
D)  Graafian follicle 
E)  Secondary follicle 
A)  Primary follicle 
B)  Tertiary follicle 
C)  Corpus luteum 
D)  Graafian follicle 
E)  Secondary follicle

Question 14

Menstruation begins because

Accepted Answer

A)  The pituitary triggers it 
B)  Luteinizing hormone is at its peak 
C)  Estrogen activity peaks 
D)  Progesterone production is highest 
E)  Progesterone and estrogen levels decline 
A)  The pituitary triggers it 
B)  Luteinizing hormone is at its peak 
C)  Estrogen activity peaks 
D)  Progesterone production is highest 
E)  Progesterone and estrogen levels decline

Question 15

Male sexual behavior is promoted by

Accepted Answer

A)  androgen. 
B)  testosterone. 
C)  Estrogen. 
D)  ecdysone. 
E)  progesterone. 
A)  androgen. 
B)  testosterone. 
C)  Estrogen. 
D)  ecdysone. 
E)  progesterone.

Question 16

Animals with both male and female organs in the same individual are called monoecious or ____________.
or
hermaphroditic or
hermaphrodite

Accepted Answer

hermaphrod

Question 17

Discuss the advantages and disadvantages of sexual versus asexual reproduction.

Accepted Answer

Sexual reproduction and asexual reproduc

Question 18

Compare meiotic and ameiotic parthenogenesis and provide an example of each.

Accepted Answer

Meiotic parthenogenesis occurs when an e

Question 19

Which statement is incorrect regarding hCG?

Accepted Answer

A)  hCG appears in the bloodstream after implantation 
B)  hCG is produced by the placenta 
C)  hCG stimulates the corpus luteum 
D)  hCG stimulates the anterior pituitary gland 
E)  hCG helps maintain estrogen and progesterone levels in the blood 
A)  hCG appears in the bloodstream after implantation 
B)  hCG is produced by the placenta 
C)  hCG stimulates the corpus luteum 
D)  hCG stimulates the anterior pituitary gland 
E)  hCG helps maintain estrogen and progesterone levels in the blood

Question 20

Which of the following are primary sex organs?

Accepted Answer

A)  Penis and vagina 
B)  Scrotum and uterus 
C)  Vas deferens and oviducts 
D)  Testes and ovaries 
E)  All of the choices are primary sex organs 
A)  Penis and vagina 
B)  Scrotum and uterus 
C)  Vas deferens and oviducts 
D)  Testes and ovaries 
E)  All of the choices are primary sex organs

Exam 7: The Reproductive Process

What is the most likely evolutionary explanation for the whiptail desert lizards evolving a female only reproduction?

In the male reproductive system,the Sertoli (sustentacular)cells

Which of the following is NOT involved in production of semen?

The outermost layer of differentiating sex cells in the testes,called ________,divide by ordinary mitosis.

The acrosome functions to

The egg grows in size well beyond the surface-area-to-volume restrictions of other single cells because it

The proximate cues that trigger labor are not fully understood; however,________ appears to be involved.

What is the critical difference between gemmulation and fragmentation?

Which is NOT true about estrogen?

The female clitoris is homologous to the male

Days 6-13 of a 28-day uterine cycle is the

Parthenogenesis is

An egg is ovulated from a

Menstruation begins because

Male sexual behavior is promoted by

Animals with both male and female organs in the same individual are called monoecious or ____________. or hermaphroditic or hermaphrodite

Discuss the advantages and disadvantages of sexual versus asexual reproduction.

Compare meiotic and ameiotic parthenogenesis and provide an example of each.

Which statement is incorrect regarding hCG?

Which of the following are primary sex organs?

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

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