Question 1

In temperate climates, temperature often _______ photoperiod timing in the coordination of reproductive events.

Accepted Answer

A)  magnifies 
B)  blunts 
C)  fine tunes 
D)  supersedes 
A)  magnifies 
B)  blunts 
C)  fine tunes 
D)  supersedes C

Question 2

Which of the following is not considered prenatal provisioning?

Accepted Answer

A)  Lactation 
B)  Yolk deposition 
C)  Nutrient transfer via the placenta 
D)  Producing eggs that serve as food for young 
A)  Lactation 
B)  Yolk deposition 
C)  Nutrient transfer via the placenta 
D)  Producing eggs that serve as food for young A

Question 3

Refer to the figure shown.
  Which statement regarding the figure is true?

Accepted Answer

A)  This is a diagram of a developing male. 
B)  The figure shows an indifferent state in development that is identical in males and females. 
C)  This is a diagram of a developing female. 
D)  The labioscrotal swelling becomes the clitoris in the female. 
A)  This is a diagram of a developing male. 
B)  The figure shows an indifferent state in development that is identical in males and females. 
C)  This is a diagram of a developing female. 
D)  The labioscrotal swelling becomes the clitoris in the female. B

Question 4

Which species is iteroparous?

Accepted Answer

A)  Octopus 
B)  Mayfly 
C)  Dogfish shark 
D)  Sockeye salmon 
A)  Octopus 
B)  Mayfly 
C)  Dogfish shark 
D)  Sockeye salmon

Question 5

Which aspect of reproduction is not typically studied by physiologists?

Accepted Answer

A)  Control of the annual cycle of reproduction 
B)  Mechanisms of function of the reproductive cells and organs 
C)  Sexual selection 
D)  Delivery of resources to offspring by parents 
A)  Control of the annual cycle of reproduction 
B)  Mechanisms of function of the reproductive cells and organs 
C)  Sexual selection 
D)  Delivery of resources to offspring by parents

Question 6

For sperm to be capable of fertilizing the oocyte, they must undergo a process of

Accepted Answer

A)  capacitation. 
B)  competition. 
C)  fertilization. 
D)  implantation. 
A)  capacitation. 
B)  competition. 
C)  fertilization. 
D)  implantation.

Question 7

Refer to the figure shown.
  What process is occurring at arrow I in the figure?

Accepted Answer

A)  Ovulation 
B)  Estrous 
C)  Fertilization 
D)  Menstruation 
A)  Ovulation 
B)  Estrous 
C)  Fertilization 
D)  Menstruation

Question 8

Refer to the figure shown.
  A hormone released from location _______ stimulates the granulosa cells to convert androgens to estrogens using the action of the enzyme at location _______.

Accepted Answer

A)  II; III 
B)  II; IV 
C)  III; IV 
D)  IV; V 
A)  II; III 
B)  II; IV 
C)  III; IV 
D)  IV; V

Question 9

Describe the positive feedback loop during birth and how this feedback ends.

Accepted Answer

Myometrial contractions force the fetus

Question 10

The _______ cells support and regulate spermatogenesis.

Accepted Answer

A)  Leydig 
B)  theca 
C)  Sertoli 
D)  granulosa 
A)  Leydig 
B)  theca 
C)  Sertoli 
D)  granulosa

Question 11

Refer to the figure shown.
  The figure shows a classic example of

Accepted Answer

A)  induced ovulation. 
B)  testicular recrudescence. 
C)  a follicle-stimulating hormone surge. 
D)  seasonal ovulation. 
A)  induced ovulation. 
B)  testicular recrudescence. 
C)  a follicle-stimulating hormone surge. 
D)  seasonal ovulation.

Question 12

Which statement regarding embryonic diapause in the Antarctic fur seal is true?

Accepted Answer

A)  The resumption of development following diapause is under photoperiodic control. 
B)  Diapause delays implantation for 1‒2 months. 
C)  Delayed implantation is facultative in this species. 
D)  The period from copulation to birth is about 165 days. 
A)  The resumption of development following diapause is under photoperiodic control. 
B)  Diapause delays implantation for 1‒2 months. 
C)  Delayed implantation is facultative in this species. 
D)  The period from copulation to birth is about 165 days.

Question 13

Refer to the figure shown.
  Which arrow in the figure best corresponds to the time of the most likely success of implantation?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 14

An advantage of semelparous reproduction is

Accepted Answer

A)  an increased chance of young surviving given the large energy investment per individual. 
B)  the increased number of reproductive events possible. 
C)  an increased chance of young surviving given the large number of offspring produced. 
D)  an increased chance of young surviving given the large variability to when young can be produced. 
A)  an increased chance of young surviving given the large energy investment per individual. 
B)  the increased number of reproductive events possible. 
C)  an increased chance of young surviving given the large number of offspring produced. 
D)  an increased chance of young surviving given the large variability to when young can be produced.

Question 15

What is the role of the corpus luteum in pregnancy and menstruation?

Accepted Answer

The corpus luteum is formed from the rup

Question 16

What is the functional significance of embryonic diapause? Provide an example.

Accepted Answer

Embryonic diapause is a programmed state

Question 17

In teleost fish, species recognition is determined

Accepted Answer

A)  in the zona pellucida surrounding the egg. 
B)  by a receptor protein on the egg membrane. 
C)  through the micropyle. 
D)  by the Izumo1 protein. 
A)  in the zona pellucida surrounding the egg. 
B)  by a receptor protein on the egg membrane. 
C)  through the micropyle. 
D)  by the Izumo1 protein.

Question 18

Which statement regarding the placenta is true?

Accepted Answer

A)  Maternal blood and embryonic blood mix. 
B)  The placenta supplies the embryo with O2 and nutrients from fertilization to parturition. 
C)  The placenta mainly secretes oxytocin during parturition. 
D)  The placenta carries out the main functions of the lung for the fetus. 
A)  Maternal blood and embryonic blood mix. 
B)  The placenta supplies the embryo with O2 and nutrients from fertilization to parturition. 
C)  The placenta mainly secretes oxytocin during parturition. 
D)  The placenta carries out the main functions of the lung for the fetus.

Question 19

In fish species where males control harems of females, the highest reproductive output would be likely in

Accepted Answer

A)  a male. 
B)  a female. 
C)  a protogynous individual. 
D)  a protandrous individual. 
A)  a male. 
B)  a female. 
C)  a protogynous individual. 
D)  a protandrous individual.

Question 20

Androgens are classified as "male hormones," yet they are produced in the female mammal. Why are they important in the female mammal?

Accepted Answer

Androgens are importance precursors to e

Exam 17: Reproduction

In temperate climates, temperature often _______ photoperiod timing in the coordination of reproductive events.

Which of the following is not considered prenatal provisioning?

Refer to the figure shown. Which statement regarding the figure is true?

Which species is iteroparous?

Which aspect of reproduction is not typically studied by physiologists?

For sperm to be capable of fertilizing the oocyte, they must undergo a process of

Refer to the figure shown. What process is occurring at arrow I in the figure?

Refer to the figure shown. A hormone released from location _______ stimulates the granulosa cells to convert androgens to estrogens using the action of the enzyme at location _______.

Describe the positive feedback loop during birth and how this feedback ends.

The _______ cells support and regulate spermatogenesis.

Refer to the figure shown. The figure shows a classic example of

Which statement regarding embryonic diapause in the Antarctic fur seal is true?

Refer to the figure shown. Which arrow in the figure best corresponds to the time of the most likely success of implantation?

An advantage of semelparous reproduction is

What is the role of the corpus luteum in pregnancy and menstruation?

What is the functional significance of embryonic diapause? Provide an example.

In teleost fish, species recognition is determined

Which statement regarding the placenta is true?

In fish species where males control harems of females, the highest reproductive output would be likely in

Androgens are classified as "male hormones," yet they are produced in the female mammal. Why are they important in the female mammal?

Animals and Environments: Function on the Ecological Stage

Molecules and Cells in Animal Physiology

Genomics, Proteomics, and Related Approaches to Physiology

Physiological Development and Epigenetics

Transport of Solutes and Water

Nutrition, Feeding, and Digestion

Energy Metabolism

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Neurons

Synapses

Sensory Processes

Nervous System Organization and Biological Clocks

Endocrine and Neuroendocrine Physiology

Integrating Systems at Work: Animal Navigation

Control of Movement

Muscle

Movement and Muscle at Work: Plasticity in Response to Use and Disuse

Introduction to Oxygen and Carbon Dioxide in Physiology

External Respiration: the Physiology of Breathing

Transport of Oxygen and Carbon Dioxide in Body Fluids With an Introduction to Acid- Base Physiology

Circulation

Oxygen, Carbon Dioxide, and Internal Transport at Work: Diving by Marine Mammals

Water and Salt Physiology: Introduction and Mechanisms

Kidneys and Excretion With Notes on Nitrogen Excretion

Water, Salts, and Excretion at Work: Mammals of Deserts and Dry Savannas

Water and Salt Physiology of Animals in Their Environments

Filters

Refer to the figure shown. A hormone released from location _ stimulates the granulosa cells to convert androgens to estrogens using the action of the enzyme at location _.