Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 42, Problem 3DAA
Summary Introduction
To explain: The type of defect that is more than twice risk to occur in the multiple-births than in single newborns.
Concept introduction: During the gestation period, the mother can have single birth or multiple births. Single birth is where only one fetus is carried during the gestation period in the womb. Multiple births are where more than one fetus is carried during the gestation period such as twins, triplets, quadruplets, and more. Carrying more than one fetus in the womb results in the insufficient supply of nutrient to the developing fetus. These fetuses become still-born or born with abnormalities.
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Chapter 42 Solutions
Biology: The Unity and Diversity of Life
Ch. 42 - Prob. 1DAACh. 42 - Prob. 2DAACh. 42 - Prob. 3DAACh. 42 - Prob. 4DAACh. 42 - The end product of cleavage is a __________. a....Ch. 42 - The outermost germ layer in a vertebrate gastrula...Ch. 42 - Prob. 3SQCh. 42 - Prob. 4SQCh. 42 - In humans, fertilization typically occurs in the...Ch. 42 - The ________, a fluid-filled sac, surrounds and...
Ch. 42 - The placenta consists of __________. a. embryonic...Ch. 42 - During the fetal period, ____________. a....Ch. 42 - Prob. 9SQCh. 42 - Match each hormone with its action(s). ______...Ch. 42 - Prob. 11SQCh. 42 - Prob. 12SQCh. 42 - Prob. 13SQCh. 42 - Prob. 14SQCh. 42 - Place these events in human development in the...Ch. 42 - The rubella virus causes German measles. If a...Ch. 42 - A nursing mother who has an alcoholic drink...Ch. 42 - To determine the effect of the bicoid gene,...Ch. 42 - If an embryo splits at the two-cell stage, each of...
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