MasteringBiology With eText - Access
MasteringBiology With eText - Access
7th Edition
ISBN: 9780321911940
Author: Johnson
Publisher: PEARSON
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Chapter 21, Problem 6TY
Summary Introduction

Introduction:

During pregnancy, the structure that joins the developing fetus to the maternal body is called the placenta. The placenta is responsible for creating the connection between fetus and the uterine wall of mother that permits the delivery of nutrients to the baby from mother’s body and also allows the gaseous exchange and excrete out the waste from fetus to mother.

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Which of the following statements is NOT correct about the umbilical cord? Select one: a. The umbilical cord is formed from the chorion. b. The placenta connects to the embryon via the umbilical cord. c. The umbilical cord consists of two arteries and one vein. d. The umbilical cord is formed from the yolk sac and the allantois.
Which of the following statements is incorrect?a. The placenta secretes hormones such as progesterone, hCG, and estrogen.b. Embryonic tissue and maternal tissue forms the placenta.c. The chorion supplies nutrients to the embryo by diffusion.d. The umbilical cord is formed by one artery and two veins
Which of the following statements is NOT correct about the umbilical cord?   a. The umbilical cord is formed from the yolk sac and the allantois. b. The umbilical cord is formed from the chorion. c. The umbilical cord consists of two arteries and one vein. d. The placenta connects to the embryon via the umbilical cord.
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Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license