Question 1

The hormones involved in the estrous cycle are

Accepted Answer

A) FSH. 
B) LH. 
C) MSH. 
D) FSH and LH. 
E) LS and MSH. 
A) FSH. 
B) LH. 
C) MSH. 
D) FSH and LH. 
E) LS and MSH.

Question 2

According to the figure,what is the only hormone that doesn't peak during ovulation?

Accepted Answer

A) progesterone 
B) FSH 
C) LH 
D) estrogen 
E) all female reproductive hormones peak at ovulation 
A) progesterone 
B) FSH 
C) LH 
D) estrogen 
E) all female reproductive hormones peak at ovulation

Question 3

Which of the following is the area where sperm develop their motility?

Accepted Answer

A) seminal vesicle 
B) seminiferous tubules 
C) epididymis 
D) vas deferens 
E) acrosome 
A) seminal vesicle 
B) seminiferous tubules 
C) epididymis 
D) vas deferens 
E) acrosome

Question 4

In humans,which embryonic tissues are "indifferent"?

Accepted Answer

A) vertebral columns 
B) brain stems 
C) adrenal glands 
D) spinal cords 
E) gonads 
A) vertebral columns 
B) brain stems 
C) adrenal glands 
D) spinal cords 
E) gonads

Question 5

Choose the correct statement regarding estrous and menstrual cycles.

Accepted Answer

A) Animals with estrous cycles ovulate only after copulation. 
B) Menstrual cycles are longer than estrous cycles. 
C) Copulation can only occur during ovulation in the menstrual cycle. 
D) The lining of the uterus is shed during menstruation and estrous. 
E) Ovulation only occurs during the menstrual cyclE. 
A) Animals with estrous cycles ovulate only after copulation. 
B) Menstrual cycles are longer than estrous cycles. 
C) Copulation can only occur during ovulation in the menstrual cycle. 
D) The lining of the uterus is shed during menstruation and estrous. 
E) Ovulation only occurs during the menstrual cyclE.

Question 6

The hormone assayed in the pregnancy tests is

Accepted Answer

A) LH. 
B) FSH. 
C) estrogen. 
D) progesterone. 
E) hCG. 
A) LH. 
B) FSH. 
C) estrogen. 
D) progesterone. 
E) hCG.

Question 7

The scrotum,the inguinal canal outside the abdomen in which the testes are suspended,is essential in the males of mammals because

Accepted Answer

A) sperm must be closer to the penis to be ejaculated. 
B) there is not enough space in the abdomen to grow properly. 
C) lower temperature is required for normal development of sperm. 
D) there is too much hormonal influence if they remain in the abdomen. 
E) all of thesE. 
A) sperm must be closer to the penis to be ejaculated. 
B) there is not enough space in the abdomen to grow properly. 
C) lower temperature is required for normal development of sperm. 
D) there is too much hormonal influence if they remain in the abdomen. 
E) all of thesE.

Question 8

This process is absent in mammals with an estrous cycle.

Accepted Answer

A) oogenesis 
B) homeostasis 
C) ovulation 
D) menstruation 
E) placenta formation 
A) oogenesis 
B) homeostasis 
C) ovulation 
D) menstruation 
E) placenta formation

Question 9

According to the figure,what is occurring during day 2?

Accepted Answer

A) ovulation 
B) release of corpus luteum 
C) menstruation 
D) luteal regression 
E) copulation 
A) ovulation 
B) release of corpus luteum 
C) menstruation 
D) luteal regression 
E) copulation

Question 10

The avoidance of reproduction without giving up sexual intercourse is known as __________.

Accepted Answer

A) abstinence 
B) the rhythm method 
C) asexual reproduction 
D) contraception 
A) abstinence 
B) the rhythm method 
C) asexual reproduction 
D) contraception

Question 11

The embryos of placental mammals

Accepted Answer

A) are born immediately after fertilization. 
B) develop inside a leathery shell. 
C) complete development in a pouch. 
D) hatch from an internal egg. 
E) are totally dependent on the mother for complete development. 
A) are born immediately after fertilization. 
B) develop inside a leathery shell. 
C) complete development in a pouch. 
D) hatch from an internal egg. 
E) are totally dependent on the mother for complete development.

Question 12

Select the item that is not common among reptile and bird eggs.

Accepted Answer

A) amnion 
B) incubation temperature 
C) calcareous shell 
D) yolk sac 
E) allantois 
A) amnion 
B) incubation temperature 
C) calcareous shell 
D) yolk sac 
E) allantois

Question 13

Birth control pills prevent fertilization by

Accepted Answer

A) altering the uterine environment so that sperm cannot survive. 
B) preventing follicle development and ovulation. 
C) providing hormonal signals that fertilization has already occurred. 
D) inhibiting menstruation. 
E) preventing implantation. 
A) altering the uterine environment so that sperm cannot survive. 
B) preventing follicle development and ovulation. 
C) providing hormonal signals that fertilization has already occurred. 
D) inhibiting menstruation. 
E) preventing implantation.

Question 14

The most primitive mammals incubate their eggs in a nest and the young hatchlings obtain their milk by licking the mammary glands.These are called

Accepted Answer

A) monotremes. 
B) marsupials. 
C) apes. 
D) opossums. 
E) kangaroos. 
A) monotremes. 
B) marsupials. 
C) apes. 
D) opossums. 
E) kangaroos.

Question 15

Which of the following is not correctly matched in their modes of reproduction?

Accepted Answer

A) protists-fission 
B) humans-parthenogenesis/internal reproduction 
C) cnideria-budding 
D) tape worm-hermaphroditism 
E) bees-parthenogenesis/internal reproduction 
A) protists-fission 
B) humans-parthenogenesis/internal reproduction 
C) cnideria-budding 
D) tape worm-hermaphroditism 
E) bees-parthenogenesis/internal reproduction

Question 16

If utilized properly,what is the least effective means of birth control?

Accepted Answer

A) oral contraceptive 
B) condom 
C) foam 
D) IUD 
E) implant 
A) oral contraceptive 
B) condom 
C) foam 
D) IUD 
E) implant

Question 17

All of the following are male accessory organs except the

Accepted Answer

A) epididymis. 
B) vas deferens. 
C) prostate gland. 
D) Fallopian tube. 
E) seminal vesicles. 
A) epididymis. 
B) vas deferens. 
C) prostate gland. 
D) Fallopian tube. 
E) seminal vesicles.

Exam 53: The Reproductive System

The hormones involved in the estrous cycle are

According to the figure,what is the only hormone that doesn't peak during ovulation?

Which of the following is the area where sperm develop their motility?

In humans,which embryonic tissues are "indifferent"?

Choose the correct statement regarding estrous and menstrual cycles.

The hormone assayed in the pregnancy tests is

The scrotum,the inguinal canal outside the abdomen in which the testes are suspended,is essential in the males of mammals because

This process is absent in mammals with an estrous cycle.

According to the figure,what is occurring during day 2?

The avoidance of reproduction without giving up sexual intercourse is known as __________.

The embryos of placental mammals

Select the item that is not common among reptile and bird eggs.

Birth control pills prevent fertilization by

The most primitive mammals incubate their eggs in a nest and the young hatchlings obtain their milk by licking the mammary glands.These are called

Which of the following is not correctly matched in their modes of reproduction?

If utilized properly,what is the least effective means of birth control?

All of the following are male accessory organs except the

The Science of Biology

The Nature of Molecules

The Chemical Building Blocks of Life

Cell Structure

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Energy and Metabolism

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Photosynthesis

Cell Communication

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