BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 52, Problem 5A
Drug or alcohol exposure during which of the following stages is most likely to have a profound effect on the neural development of the fetus?
a. Preimplantation
b. First trimester
c. Second trimester
d. Third trimester
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Chapter 52 Solutions
BIOLOGY
Ch. 52.1 - Describe the events involved in fertilization.Ch. 52.1 - Prob. 2LOCh. 52.2 - Prob. 1LOCh. 52.2 - Prob. 2LOCh. 52.2 - Prob. 3LOCh. 52.3 - Prob. 1LOCh. 52.3 - Compare gastrulation in different animals.Ch. 52.3 - Name the extraembryonic membranes in amniotes.Ch. 52.4 - Prob. 1LOCh. 52.4 - Prob. 2LO
Ch. 52.4 - Prob. 3LOCh. 52.5 - Prob. 1LOCh. 52.5 - Explain the function of the organizer.Ch. 52.5 - Distinguish between primary and secondary...Ch. 52.6 - Describe the major developmental events in the...Ch. 52.6 - Explain the role of the placenta.Ch. 52.6 - Prob. 3LOCh. 52 - Data analysis Two different genes have mutant...Ch. 52 - Prob. 1IQCh. 52 - Prob. 1UCh. 52 - Which of the following plays the greatest role in...Ch. 52 - Gastrulation is a critical event during...Ch. 52 - Gastrulation in a mammal would be most similar to...Ch. 52 - Prob. 5UCh. 52 - Of the following processes, which occurs last? a....Ch. 52 - Which of the following would qualify as a...Ch. 52 - Prob. 1ACh. 52 - In the Spemann experiment, when the dorsal lip is...Ch. 52 - Suppose that a burst of electromagnetic radiation...Ch. 52 - Prob. 4ACh. 52 - Drug or alcohol exposure during which of the...Ch. 52 - Axis formation in amniotic embryos could be...Ch. 52 - Prob. 1SCh. 52 - You look up from your studying to see your dog,...Ch. 52 - Why doesnt a woman menstruate while she is...Ch. 52 - Spemann and Mangold were able to demonstrate that...
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- The nurse understands that a 3-cm dilatation with contractions 3 to 5 minutes apart would indicate which phase of labor? a. Active phase, first stage b. Latent phase, first stage c. Active phase, second stage d. Transition phase, second stagearrow_forwardWhich of the following rows identifies structures responsible for maintaining the endometrium before and immediately after implantation? Select one: A. Before Implantation After Implantation Corpus Luteum Placenta B. Before Implantation After Implantation Maturing Follicle Placenta C. Before Implantation After Implantation Corpus Luteum Trophoblast D. Before Implantation After Implantation Maturing Follicle Trophoblastarrow_forwardMonths pass as Ashley has an uneventful pregnancy. Eventually, Ashley goes into labor and arrives at the hospital to give birth. As Ashley progresses through the first stage of labor, all of the following occur except a. the fetus’s head pushes against the cervix, promoting the cervical dilation. b. oxytocin levels decrease as labor progresses. c. the amniotic sac may rupture. d. contractions become more frequent and more intense.arrow_forward
- Which of the following is NOT associated with the embryo developing into a male: a. androgen c. Müllerian ducts b. Wolffian ducts d. testosteronearrow_forwardThe following are correct statements about false labor, except? * A.The pain is irregular in intensity and frequency. B.The duration of contraction progressively lengthens over time. C. There is no bloody vaginal discharge. O D. The cervix is still closed.arrow_forwardThe physician determines that Ashley is in her twentieth week of pregnancy. Which of the following best describes the development of the fetus at this time (refer to table 29.3)? a. The crown–rump length is 19 centimeters. b. The heart and lungs have fully developed, but the GI tract has yet to form. c. The testes have descended into the scrotum. d. The average weight of the fetus at this time is about 2.5 kilograms.arrow_forward
- A 16-year old girl tells her doctor that she has not had menstruation for 2 months. A pregnancy test shows that she is not pregnant. What is a likely explanation for her condition? Select one: A. Endometriosis B. Low levels of estrogen and progesterone C. Cervical cancer D. Premenstrual syndrome E. Severe emotional stress O O O O Oarrow_forwardDuring which of the following would the focus of classes be mainly on physiologic changes, fetal development, sexuality, during pregnancy, and nutrition? * A. Prepregnant period B. First trimester C. Second trimester O D. Third trimester Oarrow_forwardIdentify a characteristic of a fetus in the sixth month of gestation. a. It weighs between 5 and 7 pounds. b. It can open and close its eyes and look in all directions. c. It has fully developed reflex patterns. d. It has a respiratory system that is adequate to survive outside the womb.arrow_forward
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