Concept explainers
Introduction:
Voles are small rodents that show inherited differences in the number and distribution of certain hormone receptors that influence mating and bonding behavior. Most voles are promiscuous, which means that they have multiple mates. Some moles also form lifelong monogamous relationships.
Answer to Problem 1SA
Oxytocin, a hormone that plays a role in vole mating behavior. It also affects human social behavior. Hence, the correct answer is option b.
Explanation of Solution
Reason for correct answer:
Option b. is given as “oxytocin.”
Oxytocin is a peptide that functions both as hormone and a neurotransmitter in a female prairie vole’s bonding behavior. The disruption of oxytocin from the brain of a female, who is a member of an established pair, causes her to dump the long-term partner in favor of other males. Research showed that the brains of monogamous prairie vole females have many oxytocin receptors as compared to the brains of promiscuous female voles. Moreover, the oxytocin receptors are present in the part of the brain that is associated with social behavior.
Reason for incorrect answer:
Option a. is given as, “Testosterone.”
Testosterone is a male sex hormone that is found in men, and it does not play a role in the mating behavior of voles. Hence, option a. is incorrect.
Option c. is given as, “FSH.”
FSH is a follicle-stimulating hormone, which plays an important role in stimulating the growth of the ovarian follicles in the ovary; whereas, in men, FSH stimulates the production of sperm. It does not play a role in vole mating behavior. Hence, option c. is incorrect.
Option d. is given as, “estrogen.”
Estrogen is responsible for developing and regulating the reproductive system and secondary sexual characteristics in females as it is a primary female sex hormone. It is not involved in the vole mating behavior. Hence, option d. is incorrect.
Hence, the options a., c., and d. are incorrect.
Oxytocin plays a role in mating behavior and also affecting human social behavior. Thus, the correct option is b.
Want to see more full solutions like this?
- What is the function of the hormone erythropoietin? a. stimulates production of red blood cells b. stimulates muscle growth c. causes the fight-or-flight response d. causes testosterone productionarrow_forwardDescent with modification results in individuals who: A. are the strongest. B. are the smartest. C. have the greatest ability to succeed in life. D. have the greatest ability to survive and reproduce.arrow_forwardWhat does folate deficiency in males cause? A. Blindness B. High sperm production C. Low sperm production D. Cardiovascular Diseasearrow_forward
- Two male deer compete for access to a female by sparring with their antlers. What type of selection pressure is this? a Intrasexual b Intersexualarrow_forwardA deer notices a wolf in the area. What organ is responsible for sending a message to the deer that it needs to move quickly away from danger? A. the lungs B. the heart C. the skeleton D. the brainarrow_forwardResearch how does the temperature of the sand affect the population of sea turtles? Do you believe that sand temperature determines the sex of sea turtles and why limate change is crucial to the survival of their population ? Discuss your answers.arrow_forward
- Fluctuations in body weight are a result of? A. Genetics B. Age C. Changes in sleep patterns D. Changes in energy intake and expenditurearrow_forwardUsing his antennae, the male moth finds female moths by following a trail of airborne chemicals, called pheromones, upwind to the female producing them. This is an example of how living things ___. A. acquire nutrients B. maintain homeostasis C. respond to stimuli D. reproduce E. growarrow_forwardAssume you are studying a lizard that is involved in males displaying to females and females choosing males to mate with. The females will raise the offspring by themselves. Which of the following benefits might females be receiving in this system? a. Direct benefits b. Indirect benefits c. Both a. and b. d. Neither a. nor b.arrow_forward
- Humans can influence the inheritance of desired characteristics in other organisms. Describe an example that explains how humans can do this.arrow_forwardPima Indians are encouraged to exercise regularly to delay the onset of diabetes and/or improve diabetic symptoms. What impact does vigorous physical exercise have on their health?arrow_forwardThe presence of a wattle and comb in a rooster is a result of: A. Ongoing presence of hormones in the rooster B. Previous presence of hormones during pubertal development C. Both previous and ongoing presence of hormones.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College