EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 9780134505589
Author: Urry
Publisher: PEARSON CO
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Chapter 46.5, Problem 3CC
Summary Introduction
To explain: The steps that will be bypassed if a sperm nucleus is injected into an oocyte.
Concept introduction: Sperms are produced in the testes of males, and egg cells are produced in the ovary of females. In males, epididymis is a coiled tube that connects the testicle to vas deferens. Vas deferens is a muscular duct through which sperms are propelled out. The fusion of the sperm to egg cell completes the process of fertilization.
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Chapter 46 Solutions
EBK CAMPBELL BIOLOGY
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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- MAKE CONNECTIONS What are the shared anddistinct functions of the uterus of an insect and theovary of a flowering plant? (See Figure 38.6.)arrow_forwardWHAT IF? If a hermaphrodite self-fertilizes, will theoffspring be identical to the parent? Explain.arrow_forward2. Consider the male and female reproductive systems.(a) Where does spermatogenesis occur in male? Briefly describe the process.arrow_forward
- 4. During creating male contraceptives, what steps in fertilization might be possible to block to produce contraceptives in males...?arrow_forwardDirection: Explain the following in paragraph form consists of at least five sentences for each question. Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?arrow_forwardQ1. Ella accidentally ingests the poison tetrodotoxin from the pufferfish, which you know blocks voltage-gated Na+ channels. Predict the symptoms Albert will experience from this poisoning. Q2. What type of sexual dysfunction might arise in men taking drugs that inhibit sympathetic nervous system activity as part of the treatment for high blood pressure? Q3. How might the female orgasm increase the chance for fertilization to occur? Q4. Explain why oral contraceptives, which artificially raise levels of estrogens and progesterone, prevent pregnancy. Q5. Diazepam is a drug that stimulates the activity of GABA receptors in the brain. If a person was having an epileptic seizure, how would diazepam affect the seizure? Q6. During a surgical procedure, an anesthesiologist administers to the patient an inhaled anesthetic agent that opens Cl- channels in the postsynaptic membranes of neurons of the brain. Explain why this would put the patient “to sleep” for the duration of the surgical…arrow_forward
- Test Your Understanding 12 INTERPRET DATA Examine Figure 50-14. Which hormones are present in largest concentration just before ovulation? During which part of the menstrual cycle is the endometrium most prepared to receive an embryo? Which hormones stimulate thickening of the endometrium? Gonadotropic hormones and ovarian hormones regulate the monthly sequence of events that take place within the ovary and uterus. The preovulatory phase begins with menstruation; the postovulatory phase begins after ovulation. Figure 50-14 Endocrine regulation of the menstrual cycle When fertilization does not occur, the menstrual cycle repeats about every 28 days. Note the changes in hormone concentrations that regulate the menstrual cycle. (FSH, follicle-stimulating hormone; LH, luteinizing hormone) PREDICT What happens when a. womans ovaries produce a very low amount of estrogen?arrow_forwardPlease answer fast 1. Describe the events that occur in the ovaries as a rat goes through the estrus cycle. Relate these changes to the cyclic changes of the vaginal epithelium. 2. Trace the course of events from the release of ACh by a motor neuron to the binding of myosin cross-bridges to actin. of the nerve that innervates the muscle. Propose an explanation for these results. 3. What would a vaginal smear performed on an ovariectomized rat (one with its ovaries removed) look like? Explain.arrow_forward1. Predict the fertilization problems if the Ca+2 wave gets blocked?2. One of the goals of modern-day pharmacology is to develop a male contraceptive.Go through the steps of fertilization and determine what steps do you think it might be possible to block pharmacologically in order to produce such a contraceptive for males?arrow_forward
- 1) The two hormones produced by the ovaries that help regulate the female reproductive cycle are ____?_______ and _____?______arrow_forwardWatch this series of videos (http://openstaxcollege.org/l/oocyte) to look at the movement of the oocyte through the ovary. The cilia in the uterine tube promote movement of the oocyte. What would likely occur if the cilia were paralyzed at the time of ovulation?arrow_forward1The gonadotropins are hormones produced by the anterior pituitary gland and affect both male and female reproductive cycles; they are, ___?____and ____?___.arrow_forward
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