Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 43, Problem 4Q
Summary Introduction
To review:
The effect of valproic acid if a woman consumes it during her early days of pregnancy and beneficial effects of folic acid supplements given to this pregnant woman.
Introduction:
The time period for the development of the fetus (gestation) in humans is divided into three trimesters, each having a period of three months. The embryo in the first trimester divides rapidly as it undergoes several cell divisions and the genes present signals the differentiation of the cells for the formation of vital organs such as heart, brain, respiratory, and
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Chapter 43 Solutions
Life: The Science of Biology
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- Please answer both parts of the question.A 25-year-old woman comes to the pharmacy where you work and asks for apregnancy testing kit.a) Describe the cyclic hormonal changes AND the cyclic changes observed in the endometrium that occur during the menstrual cycle in non-pregnant women.b) Which hormone serves as the basis of standard pregnancy tests? From where is it secreted and what is its function?arrow_forwardUse the following information to answer the next two questions.Birth control pills are oral contraceptives taken by women to prevent pregnancies. The most effective forms of birth control pills contain estrogen and a small amount of progestin (a synthetic hormone that mimics the effects of progesterone). The role of estrogen in the birth control pill is to Select one: a. prevent a rise in the FSH and LH levels, thereby preventing follicle maturation b. reduce the progesterone levels in the blood to limit the endometrium buildup c. suppress the shedding of endometrium, thus preventing menstruation d. negatively feedback to the anterior pituitary to suppress the production of GnRHarrow_forwardWhich recommendation seems most appropriate for Catarina during her pregnancy? 1. Catarina should maintain a healthy diet and appropriate exercise regimen, and avoid unnecessary exposure to environmental contaminants. She should also keep taking her current antidepressants. 2. Catarina should definitely address the issues of a healthy diet and environment as well as exercise, but her physician should also explore whether to change to another dose or type of antidepressant. 3. Catarina has already exposed her unborn baby to some risk factors, so she should stop taking the antidepressant and try to control her depression through cognitive-behavioral therapy. 4. Catarina should definitely clean up her diet, but she might as well stay on her medication. What's done is done, and the baby has already been exposed to antidepressants during critical periods. Defend After stating your decision, defend it. Explain why your decision is the best given the evidence, and explain why the evidence…arrow_forward
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