Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 51, Problem 8TYU
Summary Introduction
Introduction: During the process of embryonic development, the zygote undergoes multiple divisions to give rise to the embryo. The embryo undergoes several divisions to mature into the adult organism. The gastrula has three germ layers, namely ectoderm, mesoderm, and ectoderm.
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Chapter 51 Solutions
Biology (MindTap Course List)
Ch. 51.1 - Prob. 1LOCh. 51.1 - Prob. 2LOCh. 51.1 - Prob. 1CCh. 51.1 - Prob. 2CCh. 51.2 - Prob. 3LOCh. 51.2 - Prob. 4LOCh. 51.2 - How do the mechanisms of fertilization ensure...Ch. 51.2 - Prob. 2CCh. 51.3 - Prob. 5LOCh. 51.3 - Contrast early development, including cleavage, in...
Ch. 51.3 - Prob. 1CCh. 51.3 - Prob. 2CCh. 51.3 - How do the amount and distribution of cytoplasm in...Ch. 51.4 - Identify the significance of gastrulation in the...Ch. 51.4 - Prob. 1CCh. 51.4 - How do the amount and distribution of yolk...Ch. 51.5 - Prob. 8LOCh. 51.5 - Prob. 9LOCh. 51.5 - Prob. 1CCh. 51.5 - Prob. 2CCh. 51.5 - Prob. 3CCh. 51.6 - Give the origins and functions of the chorion,...Ch. 51.6 - What are the roles of the chorion and amnion in...Ch. 51.6 - What are the functions of the allantois and yolk...Ch. 51.7 - Prob. 11LOCh. 51.7 - Prob. 12LOCh. 51.7 - Prob. 1CCh. 51.7 - How does the placenta form, and what is its...Ch. 51.7 - During which trimester does the cerebrum develop...Ch. 51.7 - Prob. 4CCh. 51 - The mechanism that leads directly to morphogenesis...Ch. 51 - Prob. 2TYUCh. 51 - Prob. 3TYUCh. 51 - Prob. 4TYUCh. 51 - Meroblastic cleavage is typical of embryos formed...Ch. 51 - Prob. 6TYUCh. 51 - Which of the following are mismatched? (a)...Ch. 51 - Prob. 8TYUCh. 51 - An unidentified substance (or substances) released...Ch. 51 - Which of the following consists of both fetal and...Ch. 51 - Prob. 11TYUCh. 51 - Prob. 12TYUCh. 51 - Prob. 13TYUCh. 51 - Prob. 14TYUCh. 51 - Prob. 15TYUCh. 51 - Prob. 16TYUCh. 51 - Prob. 17TYU
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- What is the difference in gastrulation and blastula process?arrow_forwardDescribe the movement of cells during early development that change an embryo from a blastula to a gastrula. Name the three main germ layers, describe their relative locations, and list the fates of the cells descended from each layer. What is the name and significance of the opening in the gastrula?arrow_forwardWhy are the ectoderm and endoderm called the “germ” layer?arrow_forward
- What structures are derived from the ectoderm, mesoderm, and the endoderm?arrow_forwardwhat evolutionary advantages does the amniotic egg have? explain how each component of the egg plays a role in survival of the embryoarrow_forwardWhat's the process of gastrulation in humans, how the embryo forms the three germ layers, and which organs systems or parts of the body are derived from each germ layer?arrow_forward
- Why is it that the first trimester of pregnancy the most critical in humans? How will you relate it to process of gastrulation and primary organ formation in human embryos?arrow_forwardIn your own words: Expound how the mass of inert yolk influences gastrulation in amphibians, reptiles, and mammals.arrow_forward''Because of the many later developmental trans-formations that produce the elaborately structured organs, the body plan set up during gastrulation bears little resemblance to the body plan in the adult.'' Explain why or why not.arrow_forward
- A mammalian embryo puts the trophoblast into a hurried frenzy before it decides to proceed to the business of gastrulation. Is it a Clever move, or an evolutionary blunder? Explain wellarrow_forwardHow does the blastodisc of the fertilized egg differ from an unfertilized one?arrow_forwardWhat are the three germ layers formed during gastrulation?arrow_forward
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