Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Chapter 46.4, Problem 3CC
WHAT IF? → If a human female begins taking estradiol and progesterone immediately after the Start of a new menstrual cyele, how will ovulation be affected? Explain.
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. Describe the pre- and post- ovulation events of the menstrual cycle. How is menstruation prevented if pregnancyoccurs?
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Chapter 46 Solutions
Campbell Biology: Custom Edition
Ch. 46.1 - Compare and contrast the outcomes of asexual and...Ch. 46.1 - Parthenogenesis is the most common form of asexual...Ch. 46.1 - WHAT IF? If a hermaphrodite self-fertilizes, will...Ch. 46.1 - Prob. 4CCCh. 46.2 - How does internal fertilization facilitate life on...Ch. 46.2 - What mechanisms have evolved in animals with (a)...Ch. 46.2 - MAKE CONNECTIONS What are the shared and distinct...Ch. 46.3 - Why might frequent use of a hot tub make it harder...Ch. 46.3 - Prob. 2CCCh. 46.3 - WHAT IF? If each vas deferens in a male was...
Ch. 46.4 - How are the functions of FSH and LH in females and...Ch. 46.4 - How does an estrous cycle differ from a menstrual...Ch. 46.4 - WHAT IF? If a human female begins taking...Ch. 46.4 - Prob. 4CCCh. 46.5 - Prob. 1CCCh. 46.5 - In what ways are tubal ligation and vasectomy...Ch. 46.5 - Prob. 3CCCh. 46 - Would a pair of haploid offspring produced by...Ch. 46 - Identify which of the following, if any, are...Ch. 46 - How does the difference in size and cellular...Ch. 46 - Prob. 46.4CRCh. 46 - Prob. 46.5CRCh. 46 - Prob. 1TYUCh. 46 - In male mammals, excretory and reproductive...Ch. 46 - Prob. 3TYUCh. 46 - Prob. 4TYUCh. 46 - Prob. 5TYUCh. 46 - Prob. 6TYUCh. 46 - Prob. 7TYUCh. 46 - Prob. 8TYUCh. 46 - DRAW IT In human spermatogenesis, mitosis of a...Ch. 46 - Prob. 10TYUCh. 46 - SCIENTIFIC INQUIRY You discover a new egg-laying...Ch. 46 - WRITE ABOUT A THEME: ENERGY AND MATTER In a short...Ch. 46 - SYNTHESIZE YOUR KNOWLEDGE A female Komodo dragon...
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- WHAT IF? If a sperm nucleus is injected into an oocyte,what steps of gametogenesis and conception arebypassed?arrow_forwardDescribe the female monthly cycle. What happens in the ovary and uterus at the different stages of the cycle, which hormones guide those events and where are those hormones secreted?arrow_forwardL23. Act. 4– Draw arrows on the diagrams below to trace the journey of sperm from the site of spermatogenesis in the testes to the point of fertilization in the female reproductive tract. List the organs and structures that the sperm travels through below the diagrams. List the organs the sperm travels through from the testes until it leaves the male reproductive tract.arrow_forward
- How does the decrease in progesterone at the last weeks of pregnancy help to bling on labor? stimulating FSH production decreasing the levels of estrogens dilating the cervix decreasing the inhibition of uterine contractilityarrow_forwardwhat does a menstrual cycle concept map with 10 words or phrases look like?arrow_forwardUnderstanding the causes of infertility can be valuablein developing new birth control methods. Cite a type ofcontraceptive based on each of the following causes of infertility:(a) failure to ovulate due to a hormonal imbalance;(b) a large fibroid tumor that disturbs the uterine lining;(c) endometrial tissue blocking uterine tubes;(d) low sperm count (too few sperm per ejaculate).arrow_forward
- select ALL that are TRUE about sperm:☑️Meiosis is suspended twice in sperm development; meiosis of sperm is completed when the sperm penetrates an egg ☑️Both the activity of sperm flagella, and the contraction of uterine muscles, are required to propel sperm to the egg in a timely fashion ☑️Each of the four sperm formed by one meiotic event is genetically unique and haploid ☑️ Sperm secrete testosterone which stimulates sustentacular cells to help their development\arrow_forwardDraw two graphs that illustrate the uterine and ovarian cycles. Explain the functions and FSH, LH, estrogen, and progesterone, giving a step-by-step explanation of maturation of a follicle, ovulation, and the corresponding stages of development of the endometrium.arrow_forwardIdentify the structure and function of key anatomical features of the female reproductive system including: external genitalia (labia majus and minus, vestibule, clitoris) internal genitalia and ducts (vagina, cervix, uterus, uterine tubes) ovaries2. Describe the process of oogenesisarrow_forward
- S 17. Summarize the development of the ovarian follicles as indicated below. Shape of follicular cells? Name of Follicle Oocyta (1º, 2º, or no oocyte present) (Flat or cuboidal) Zona pellucid a and zona radiata present 7 (Yes or no) Antrum Stage 7 of melos! s of the oocyte In the follicle (None, small, or large) N/A N/A How many go onto next stage of developme nt? If the ovulated oocyte is fertilized, the corpus luteum survives a few months; Otherwise, the corpus luteum becomes a corpus albicans. Oarrow_forwardAfter learning about the reproductive systems, how would advise a couple with following concern: "If we do not want a baby for next two years, how can we calculate the safe sex period?" She shares that her cycle is regular but not standard 28 days long cycle (so the standard explanation form different sources won't work unless you think critically)! At what time of the female cycle is she most likely to prevent fertilization of her ovulated egg? Consider the fact that her cycle is not 28 days but longer or shorter (you pick). Do males have any time (in their cycle- if any) when their gametes would not be able to fertilize the egg? In other words when can intercourse lead to least chance of pregnancy? Feel free to check with your older friends, doctors, nurses, or anyone who you feel comfortable talking about this.arrow_forwardDuring the follocular phase of the ovarian cycle, what does an increase in estrogen concentrations correlate with? 1-The degradation of a follicle containing an egg(oocyte) 2-The formation of the corpus luteum 3-The maturation of a follicle containing an egg(oocyte) 4- The degradation of teh corpus luteumarrow_forward
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