Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 3TY
Which of the following processes is the first to occur as a fertilized egg begins its journey down a uterine tube toward the uterus?
a. differentiation
b. cleavage
c. growth
d. all of these choices
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Chapter 21 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 21 - Prob. 1QCCh. 21 - Prob. 2QCCh. 21 -
1. Why does only one sperm fertilize the egg, and...Ch. 21 - Prob. 2CRCh. 21 - Prob. 3CRCh. 21 - Describe the stages of labor and delivery.Ch. 21 - What causes the newborn to take its first breath...Ch. 21 - Prob. 6CRCh. 21 - What causes the onset of puberty (sexual...Ch. 21 - Summarize the three main hypotheses of the causes...
Ch. 21 - Prob. 9CRCh. 21 - Prob. 10CRCh. 21 - Which of the following lists the correct order of...Ch. 21 - Which of the following will result in fraternal...Ch. 21 -
3. Which of the following processes is the first...Ch. 21 - Prob. 4TYCh. 21 - Prob. 5TYCh. 21 - Prob. 6TYCh. 21 -
7. Which of the following is mismatched?
a....Ch. 21 - Prob. 8TYCh. 21 - Prob. 9TYCh. 21 -
10. Which of the following would be detrimental...Ch. 21 - Prob. 11TYCh. 21 - Prob. 12TYCh. 21 - Prob. 13TYCh. 21 - Prob. 14TYCh. 21 - Which hormone plays a critical role both in...Ch. 21 - Prob. 1AWKCh. 21 - Prob. 2AWKCh. 21 - Prob. 3AWKCh. 21 - Each year, it is estimated that over 40,000...Ch. 21 - Prob. 5AWKCh. 21 - Prob. 6AWKCh. 21 - How is it possible that one's life could be...
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- In the fertility awareness method of birth control, a woman gauges her monthly fertile period by monitoring changes in the consistency of her vaginal mucus. What kind of information does such a method provide about the likelihood of getting pregnant?arrow_forwardWhich of the following is NOT associated with the embryo developing into a male: a. androgen c. Müllerian ducts b. Wolffian ducts d. testosteronearrow_forwardWhich of the following statements is/are true? A. Spermatogenesis is an example of asymmetric cell division. B. The formation of a mature egg occurs through symmetric cell division. C. Spermatogenesis and oogenesis are both examples of asymmetric cell division. D. Spermatogenesis involves only symmetric cell division whereas oogenesis involves asymmetric cell division.arrow_forward
- Which of the following structure develops into only the fetus? A. Blastocyte B. Zygote C. Trophoblast D. Inner cell massarrow_forwardWhich of the following structures develops into only the fetus? a. Inner cell mass b. Trophoblast c. Blastocyst d. Zygotearrow_forwardWhich of the following is not a mechanism on how contraceptive pills work to prevent pregnancy? A. thinning the endometrium to prevent implantation B. inhibition of follicular development and suppression of ovulation C. progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly D. stimulates the production of high testosterone levelsarrow_forward
- Which of the following occurs during a capacition A. Regeneration of placenta B. Involution of the uterus C. Release of digestive enzymes from the acrosome D. Decreased use of simple sugars for energy productionarrow_forwardWhich of the following statement does NOT describe the event that occurs if the ovum is not fertilized? Select one: A. Progesterone maintains the endometrium for the zygote. B. Low level of progesterone results in menstruation. C. The corpus luteum degenerates and stops producing estrogen and progesterone. D. GnRH, FSH, and LH levels begin to increase.arrow_forwardAn individual has the chromosomal makeup XX and sexual differentiation proceeds normally. Which of the following would be the case? a. Mullerian ducts will degenerate b. Estrogen promotes development of the vagina c. Anti-Mullerian hormone is present d. Wolffian ducts will develop e. There will be no formation of fetal testesarrow_forward
- Placenta is the structure formed: A. by the union of foetal and uterine tissue B. by foetus only C. by fusion of germ layers D. None of thesearrow_forwardWhich of the following does NOT aid the sperm in fertilization? a. increased mitochondria b. flageullum development c. cytoplasmic bridge d. hyaluronidase and protease e. acrosomesarrow_forwardAfter the zygote undergoes several mitotic divisions, the resulting structure that implants in the endometrium is called Select one: a. zygote b. morula c. blastocyst d. embryonic discarrow_forward
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