Question 1

Which of the following statements is incorrect?

Accepted Answer

A) the follicles in the ovary produce luteinizing hormone. 
B) the corpus luteum produces progesterone. 
C) a surge of LH is believed to promote ovulation. 
D) LH stimulates the formation of the corpus luteum. 
A) the follicles in the ovary produce luteinizing hormone. 
B) the corpus luteum produces progesterone. 
C) a surge of LH is believed to promote ovulation. 
D) LH stimulates the formation of the corpus luteum.

Question 2

The hormone inhibin

Accepted Answer

A) decreases sexual urges. 
B) triggers ovulation in females. 
C) prevents or inhibits erection. 
D) serves in a negative feedback manner at the anterior pituitary. 
A) decreases sexual urges. 
B) triggers ovulation in females. 
C) prevents or inhibits erection. 
D) serves in a negative feedback manner at the anterior pituitary.

Question 3

Discuss the advantages and disadvantages of sexual versus asexual reproduction.

Accepted Answer

Sexual reproduction and asexual reproduc

Question 4

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 5

Gametogenesis is the

Accepted Answer

A) union of an egg and a sperm. 
B) formation of eggs by the female and sperm by the male. 
C) cleavage of the embryo. 
D) menstrual cycle in the female. 
E) None of the choices is correct 
A) union of an egg and a sperm. 
B) formation of eggs by the female and sperm by the male. 
C) cleavage of the embryo. 
D) menstrual cycle in the female. 
E) None of the choices is correct

Question 6

Male athletes who consider taking synthetic steroid testosterone hormones to add muscle are warned that this may shrink the testes.Why would this effect occur?

Accepted Answer

A) this is the natural effect of testosterone;it normally shrinks testes. 
B) synthetic chemicals act differently than natural hormones. 
C) a guilt reaction in the brain causes the opposite hormone action. 
D) testosterone converts to dihydrotestosterone that has the opposite effect. 
E) the pituitary detects high levels of testosterone in the bloodstream and,not knowing that it is not self-produced,reduces FSH and LH. 
A) this is the natural effect of testosterone;it normally shrinks testes. 
B) synthetic chemicals act differently than natural hormones. 
C) a guilt reaction in the brain causes the opposite hormone action. 
D) testosterone converts to dihydrotestosterone that has the opposite effect. 
E) the pituitary detects high levels of testosterone in the bloodstream and,not knowing that it is not self-produced,reduces FSH and LH.

Question 7

In reptiles and birds,a common chamber forming the opening of the reproductive,excretory and digestive systems is called the

Accepted Answer

A) vulva. 
B) aedeagus. 
C) cloaca. 
D) labia majora. 
E) copulatrix. 
A) vulva. 
B) aedeagus. 
C) cloaca. 
D) labia majora. 
E) copulatrix.

Question 8

Most vertebrates and many invertebrates have separate sexes,a condition that is called dioecious or _______ ________.

Accepted Answer

bisexual r

Question 9

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 10

Since humans have two individual organisms to bear eggs or sperm separately,we are in the biological sense

Accepted Answer

A) asexual. 
B) bisexual. 
C) monoecious. 
D) hermaphroditic. 
E) parthenogenetic. 
A) asexual. 
B) bisexual. 
C) monoecious. 
D) hermaphroditic. 
E) parthenogenetic.

Question 11

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

Question 12

Reptile and bird eggs have

Accepted Answer

A) no chorion. 
B) no amnion. 
C) no extra-embryonic membranes because the young are inside an egg. 
D) a placental connection since these are advanced animals. 
E) a large yolk to support all early development. 
A) no chorion. 
B) no amnion. 
C) no extra-embryonic membranes because the young are inside an egg. 
D) a placental connection since these are advanced animals. 
E) a large yolk to support all early development.

Question 13

The ______ is the inner lining of the uterus that is discharged during menstruation.

Accepted Answer

A) endometrium 
B) perimetrium 
C) myocardium 
D) endocardium 
E) oviduct 
A) endometrium 
B) perimetrium 
C) myocardium 
D) endocardium 
E) oviduct

Question 14

A larger number of synthetic estrogens are showing up in the environment.Speculate on what physiological effects this may have on male animals.

Accepted Answer

The presence of a larger number of synth

Question 15

Trace the path taken by human sperm cells as they develop and leave the body,providing the identity of each accessory gland that adds fluids to the semen,and the function of those fluids,in the order they are encountered.

Accepted Answer

The path taken by human sperm cells as t

Question 16

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

Accepted Answer

placental

Question 17

In mammals,the ______ carries both sperm and urine.

Accepted Answer

A) vas deferens 
B) urethra 
C) fallopian tube 
D) ureter 
E) seminiferous tubule 
A) vas deferens 
B) urethra 
C) fallopian tube 
D) ureter 
E) seminiferous tubule

Question 18

In the case of the whiptail lizards,unisexual species were compared with a fully sexual species.Results indicated that

Accepted Answer

A) the unisexual lizard populations were slower growing because they lacked diversity. 
B) both strategies had the same levels of population growth. 
C) the unisexual lizard populations were faster growing because all individuals produced eggs. 
D) more variability is always good despite environmental conditions. 
E) the more evolved animals always reproduce sexually. 
A) the unisexual lizard populations were slower growing because they lacked diversity. 
B) both strategies had the same levels of population growth. 
C) the unisexual lizard populations were faster growing because all individuals produced eggs. 
D) more variability is always good despite environmental conditions. 
E) the more evolved animals always reproduce sexually.

Question 19

In oogenesis,the sequence of the development of an egg is

Accepted Answer

A) ootid,primary oocyte,secondary oocyte,oogonium,ovum. 
B) primary oocyte,secondary oocyte,ootid,oogonium,ovum. 
C) oogonium,primary oocyte,secondary oocyte,ootid,ovum. 
D) oogonium,ootid,primary oocyte,secondary oocyte,ovum. 
A) ootid,primary oocyte,secondary oocyte,oogonium,ovum. 
B) primary oocyte,secondary oocyte,ootid,oogonium,ovum. 
C) oogonium,primary oocyte,secondary oocyte,ootid,ovum. 
D) oogonium,ootid,primary oocyte,secondary oocyte,ovum.

Question 20

The peptide hormone ______ produced by the ______ allows expansion of the pelvis by increasing flexibility of the pubic symphysis.

Accepted Answer

A) estrogen,ovaries 
B) prolactin,hypothalamus 
C) prolactin,anterior pituitary 
D) relaxin,hypothalamus 
E) relaxin,placenta 
A) estrogen,ovaries 
B) prolactin,hypothalamus 
C) prolactin,anterior pituitary 
D) relaxin,hypothalamus 
E) relaxin,placenta

Exam 7: The Reproductive Process

Which of the following statements is incorrect?

The hormone inhibin

Discuss the advantages and disadvantages of sexual versus asexual reproduction.

Which is NOT true about estrogen?

Gametogenesis is the

Male athletes who consider taking synthetic steroid testosterone hormones to add muscle are warned that this may shrink the testes.Why would this effect occur?

In reptiles and birds,a common chamber forming the opening of the reproductive,excretory and digestive systems is called the

Most vertebrates and many invertebrates have separate sexes,a condition that is called dioecious or _______ ________.

An egg is ovulated from a

Since humans have two individual organisms to bear eggs or sperm separately,we are in the biological sense

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

Reptile and bird eggs have

The ______ is the inner lining of the uterus that is discharged during menstruation.

A larger number of synthetic estrogens are showing up in the environment.Speculate on what physiological effects this may have on male animals.

Trace the path taken by human sperm cells as they develop and leave the body,providing the identity of each accessory gland that adds fluids to the semen,and the function of those fluids,in the order they are encountered.

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

In mammals,the ______ carries both sperm and urine.

In the case of the whiptail lizards,unisexual species were compared with a fully sexual species.Results indicated that

In oogenesis,the sequence of the development of an egg is

The peptide hormone ______ produced by the ______ allows expansion of the pelvis by increasing flexibility of the pubic symphysis.

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

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Hexapods

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 Distribution

Animal Ecology

Filters

Most vertebrates and many invertebrates have separate sexes,a condition that is called dioecious or _ __.

The peptide hormone produced by the allows expansion of the pelvis by increasing flexibility of the pubic symphysis.