EP CONNECT ONLINE ACCESS FOR BIOLOGY
EP CONNECT ONLINE ACCESS FOR BIOLOGY
20th Edition
ISBN: 9781260494655
Author: Raven
Publisher: MCG COURSE
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Chapter 34, Problem 2IQ
Summary Introduction

To explain: The reason how the placenta is similar to the egg of a reptile or a bird.

Introduction: Birds and reptiles both belong to the phylum Chordata. Both are vertebrates.

An amniotic egg is found in reptiles, mammals, and birds. The animal that possesses an amniotic egg is known as amniotes. Amniotic eggs have amnion that protects the embryo. The embryo is surrounded by a fluid-filled membrane called amnion and the fluid is known as the amniotic fluid.

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Which of the following is an INCORRECT statement?   Question 6 options:   a)  The early embryo of a higher animal is never like a lower animal, but only like its early embryo.   b)  During the first three stages of development, blastomeres become smaller by way of each embryonic cleavage.   c)  The space inside of the neural tube will eventually become the space inside of the digestive system.   d)  A zygote results from the union of sperm and egg.
What is the correct order of development in humans?   Question 4 options:   blastocyst → zygote → morula → gastrula   morula → zygote → embryoblast → gastrula   zygote → morula → embryoblast → gastrula   zygote → morula → gastrula → blastocyst
What are the four membranes associated with amniotic eggs? What is the function of each of these membranes?

Chapter 34 Solutions

EP CONNECT ONLINE ACCESS FOR BIOLOGY

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