BIOLOGY 210/220 W/ACCESS 4/16 >C<
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ISBN: 9781323448670
Author: Campbell
Publisher: Pearson Custom Publishing
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Chapter 46.5, Problem 1CC
Summary Introduction
To explain: The function of hCG in pregnancy and its use in early pregnancy testing, but not in late pregnancy.
Concept introduction: Earlier pregnancy is controlled by the human chorionic gonadotropin (hCG) hormone that maintains the production of progesterone and estrogens by corpus luteum. Late pregnancy is controlled by the progesterone hormone.
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Chapter 46 Solutions
BIOLOGY 210/220 W/ACCESS 4/16 >C<
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 - Prob. 3CCCh. 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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- What is a three-parent baby? The procedure in creating one through vitro fertilizationand What problem does it solve?arrow_forwardSeeing that the placenta acts as a barrier protecting the baby from harmful substances the mother may consume, how come some babies develop ailments like Fetal Alcohol Syndrome? Are there some substances that render the protective function of the placenta less useful than required?arrow_forwardWhy does scarring of a fallopian tube increase the risk of an ectopic pregnancy?arrow_forward
- What would happen if human chorionic gonadotropin levels did not rise adequately during pregnancy?arrow_forwardWhat is the state of gonadotropin secretion during pregnancy,and what is the cause?arrow_forwardAll of the following changes take place during the last trimester of pregnancy EXCEPT- a, the cerebral cortex develops b. the baby reaches the age of viability c. the fetus gains weight d. the blastocyst implants to the lining of the uterusarrow_forward
- Why is fetal Hb essential for the survival of placental animals?arrow_forwardWhat is the role of the HCG hormone in pregnancy?arrow_forwardEmily and her husband are thrilled as they peer into Emily's uterus by means of an ultrasound. The physician reports that the pregnancy appears normal and that their baby's organs, spine, and arms and legs are developing as expected. Given this information, the current stage of prenatal development is the embryonic period germinal period zygotic period fetal stage placentaarrow_forward
- What tests are run during each month of pregnancy.arrow_forwardSome expensive home pregnancy tests claim to detect hCG as early as 5 days after conception ( when hCG are barely there). With the knowledge of how pregnancy tests work, please describe how a pregnancy test manufacturer could create such ultra sensitive test?arrow_forwardWhy is folic acid important during pregnancyarrow_forward
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