EBK BIOLOGY
6th Edition
ISBN: 9780134819075
Author: Maier
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 23, Problem 1GFO
Summary Introduction
To write:
Effect of exposure to alcohol and smoking when the baby is in the womb.
Introduction:
Exposure to alcohol and smoke is a major reason for birth defects and disabilities. Babies, who are exposed to alcohol and cigarettes during the embryonic stage, may suffer from many disorders such as low I.Q. level, retardation in growth and defects in the major organ system.
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Students have asked these similar questions
State the roles of progesterone and estrogen in fetal development.
During pregnancy, how does malnutrition during critical periods of development affect the fetus?
Group of answer choices
When the development of an organ is impaired, the damage is irreversible.
If the development of the heart is impaired in the early stages, it can be reversed if good nutrition is provided after the critical period.
Malnutrition does not affect the fetus but has adverse effects on the mother's health.
Malnutrition does not cause dental problems as teeth develop after the baby is born.
A surplus of nutrients taken after the critical period will make up for a deficit caused at any time during development.
During the organogenesis stage, several of the five essential developmental processes take place.
Choose two of these essential processes and describe how and when they occur during the
organogenesis stage. Be specific about the cells, tissues, and organs involved and the results.
Chapter 23 Solutions
EBK BIOLOGY
Ch. 23 - Why can two cells with the same DNA have different...Ch. 23 - Prob. 2LTBCh. 23 - Add labels to the figure that follows, which...Ch. 23 - Prob. 4LTBCh. 23 - Prob. 5LTBCh. 23 - Prob. 6LTBCh. 23 - Which hormone helps prepare the uterus for...Ch. 23 - Prob. 8LTBCh. 23 - Prob. 9LTBCh. 23 - Prob. 10LTB
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- what are the major events of embryo development? what are the major events of fetal development?arrow_forwardDescribe the role of hormones in birth.arrow_forwardDescribe how the following components relate to the placenta: umbilical arteriescotyledons, fetal vessels,chorionic villi, intervillous space, spiral arterioles, and umbilical vein?arrow_forward
- Give a brief explanation on how chromosomal abnormalities affect prenatal pregnancy or birth.arrow_forwardWhat are the major features of embryonic development at various months of pregnancy?arrow_forwarda) Describe the process of neuralation. b) Identify the germ layer from which the nervous system forms. c) Describe when in development neuralation occurs. d) Identify a teratogen that could affect the development of the brain during this stage of pregnancy.arrow_forward
- Explain how environmental factors, such as teratogens, could specifically affect the development of the embryo and fetus and whether the effects will be long-lasting depending on the time of exposure.arrow_forwardDescribe what happens during the first days of embryonic development from the first cell division until implantation.arrow_forwardWhich of the following is required for successful fetal development after the egg has been fertilized? a) That the corpus luteum remains throughout the pregnancy b) Production of estrogen (estradiol) and progesterone from the placenta c) Release of hCG (human chorionic gonatotropin) from the placentaarrow_forward
- Outline the stages of birtharrow_forwardWhat is the purpose of the placenta? Which part of the blastocyst eventually becomes the fetal placenta? In birds, developing chicks rely on the yolk sac to provide essential nutrients, but in humans, this is not the case. Why don’t we need it to provide nutrition? What is amniocentesis? How is it done?arrow_forwardHow can the decisions women make during pregnancy impact the health of their developing offspring? Identify the structure responsible for the passage of materials between mother and child during pregnancy and the process for how this exchange takes place.arrow_forward
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