Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 41, Problem 5SQ
During a menstrual cycle, a midcycle surge of ______ from the ___ triggers ovulation.
- a. FSH; pituitary
- b. progesterone; egg
- c. LH; pituitary
- d. estrogen; follicle cells
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In a menstrual cycle that does not result in pregnancy,a. LH stimulates follicle development early in the cycle.b. GnRH stimulates follicle development late in the cycle.c. ovulation typically occurs a day or two beforemenstruation.d. negative feedback by estrogen and progesterone inhibitsthe secretion of GnRH.
During a menstrual cycle, a midcycle surge of_____ from the_____ triggers ovulation. a. FSH; pituitary c. LH; pituitary b. progesterone; egg d. estrogen; follicle cells
During the menstrual cycle which stage have the following conditions in response to progesterone:
endometrial cells - enlarge
endometrial layer - thickens
endometrium - greatest degree of development
a. menses
b. proliferation phase
c. ovulation
d. secretory phase
Chapter 41 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 41 - Stuck Sperm Cells lining the epididymis secrete a...Ch. 41 - Prob. 2DAACh. 41 - Prob. 3DAACh. 41 - Prob. 4DAACh. 41 - Sexual reproduction ___ . a. requires formation of...Ch. 41 - The ___ is a genetic dead end. a. polar body b....Ch. 41 - Prob. 3SQCh. 41 - Prob. 4SQCh. 41 - During a menstrual cycle, a midcycle surge of...Ch. 41 - Prob. 6SQ
Ch. 41 - Prob. 7SQCh. 41 - Male germ cells divide by meiosis inside the...Ch. 41 - A male attains an erection when ___ . a. muscles...Ch. 41 - Prob. 10SQCh. 41 - Prob. 11SQCh. 41 - Prob. 12SQCh. 41 - Match each disease with the type of organism that...Ch. 41 - Match each structure with its description. ____...Ch. 41 - Match each hormone with its source. ____ FSH and...Ch. 41 - Prob. 1CTCh. 41 - Fraternal twins are nonidentical siblings that...Ch. 41 - Some sperm mitochondria enter an egg during...Ch. 41 - Occasionally more than one sperm penetrates and...
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- If the gonads within an embryo produce testosterone because of the presence of a Y gene on the sex chromosome, then the ____________ will develop and the _________ will deteriorate. a. Müllerian ducts; Wolffian ducts b. Wolffian ducts; Müllerian ducts c. ovaries; testes d. testes; ovariesarrow_forwardIn males, meiosis is called spermatogenesis and it happens in the ___________ and makes ____________. A. vas deferens; smooth muscle contractions B. testes; testosterone C. prostate gland; alkaline solution D. seminiferous tubules; spermarrow_forwardProgesterone secreted by the placenta suppresses ________ to prevent maturation of ovarian follicles.a. LH and estrogenb. hCG and FSHc. FSH and LHd. estrogen and hCGarrow_forward
- During the menstrual phase of the uterine cycle, a. estrogen and progesterone levels reach their highest concentrations. b. ovulation occurs. c. a pool of follicles begin to secrete estrogen. d. progesterone inhibits additional surges of luteinizing hormone.arrow_forwardWhen pregnancy occurs, the endometrium is maintained bya. the embryo releasing hCG.b. a decrease in levels of progesterone.c. the hypothalamus releasing GnRH.d. increasing levels of FSHarrow_forwardWhich of the following is NOT associated with the embryo developing into a male: a. androgen c. Müllerian ducts b. Wolffian ducts d. testosteronearrow_forward
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