When and how the placenta begins to form; the structure of the placenta; the method of transfer of nutrients and wastes between the maternal and fetal blood. Introduction: A single cell–fertilized egg is transformed into a fully developed and independent individual. It is a miraculous and one of the most important aspects of human life. Embryology is a branch of science that deals with the study of prenatal development. Now, embryology is a part of developmental biology. The developmental biology deals with the changes that occur during development, as well as the functions of a fertilized egg from fertilization to old age.

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Chapter 29.2, Problem 7AYLO

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When and how the placenta begins to form; the structure of the placenta; the method of transfer of nutrients and wastes between the maternal and fetal blood.

Introduction:

A single cell–fertilized egg is transformed into a fully developed and independent individual. It is a miraculous and one of the most important aspects of human life. Embryology is a branch of science that deals with the study of prenatal development. Now, embryology is a part of developmental biology. The developmental biology deals with the changes that occur during development, as well as the functions of a fertilized egg from fertilization to old age.

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