LIFE: THE SCIENCE OF BIOLOGY
11th Edition
ISBN: 9781319145125
Author: Sadava
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 52.3, Problem 1R
Summary Introduction
To review:
The reason that for the development of default pathway for sexual behavior in female rats.
Introduction:
Hormones have a considerable role in development of sex organs and expression of sexual behavior in females as well as males. The development and expression of the sexual behaviors depend on the level of sex hormones released during adulthood.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
My college Bio teacher asked me this question in response to one of my photos I posted on Facebook: "I wonder why some birds exhibit sexual dimorphism while others do not."
Can someone explain this phenomenom in detail?
Why do females usually have the control in selecting mate and explain sexual dimorphism.
Explain the chromosomal and genetic control of sex determination in mammals. Clearly establish the difference between the primary and the secondary phases.
Chapter 52 Solutions
LIFE: THE SCIENCE OF BIOLOGY
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How does sexual motivation differ among animal species?arrow_forwardIn seahorses, males incubate and care for offspring. Thus, the males are more likely to be tied up in reproduction at any point in time relative to females. Which sex do you predict will be the choosey sex in this species and why? Males -- because fewer are available to mate Males – because male-male competition is incredibly strong Females – because sperm are cheap to produce Female – because the operational sex ratio is biased in their favor The sperm of chimpanzees have faster swimming speeds than those of gorillas. Based on what you know about sperm competition, what would you predict about differences between these two species in female re-mating frequency and sperm viability? In chimps, females mate only once and sperm are viable for only a day In chimps, females mate multiply and sperm live for a long time In chimps, females mate only one, and sperm live for a long time In chimps, females mate multiply, and sperm live for only a day Which of the following sexual traits is…arrow_forwardWhat determines sex in birds, reptiles, humans, ants, and bees?arrow_forward
- Describe what sexual dimorphism is and why its existence is puzzling.arrow_forwardIn some species, sex is determined by environmental, rather than genetic, factors. This is true of: kangaroos humans turtles birds beesarrow_forwardWhy does the mode of fertilization correlate with thepresence or absence of male parental care?arrow_forward
- In rodent development, what would happen if there was no x-fetoprotein to bind the circulating estrogen that comes from the mother's ovaries? a) Testosterone would not be converted into estradiol. b) All rats would develop into females. c) Males would be feminized in behavior. d) Females would be masculinized in behavior.arrow_forwardClownfish are protandrous hermaphrodites. Determine whether the following features are encoded by the clownfish genome or are influenced by the proteome in response to the environment. The juvenile clownfish has both male and female immature reproductive organs. Clownfish are able to produce both testosterone and 17-estradiol. Genome encoded Increased estradiol levels lead to increased levels of proteins that promote the growth of female sex organs. Increased testosterone levels lead to increased - levels of proteins that cause male sex organs to develop Proteome influencedarrow_forwardWhat was the difference between males and females in gorski et al (1978) study? Something to do with hormonal effects on sex differences in brain anatomy in rats. What were the specific differences I guess.arrow_forward
- Male parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but in 69% of species with externalfertilization. Propose an explanation for why this is so.arrow_forwardGive three examples of female sexual selection for ornamentation in males and explain how preference for males with these ornaments increases the reproductive success of the female.arrow_forwardWhat prevents an individual from mating with itself?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning