Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 47, Problem 12TYU
Summary Introduction
To describe: How embryonic development is directed by the emergent properties of gastrula cells.
Introduction: Most biological or non-biological systems show various levels of organization, starting from the molecular level. Emergent properties refer to the new properties that are formed at each new level of organization. The higher or complex levels contain these properties, but individual components or simpler levels lack these properties.
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Describe 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?
From a 24-hour chick embryo, provide the answers in the following:
Pairs of somites in a 24-hour chick embryo
Germ layer/s that forms the head process
What begins the formation head of process
Germ layer/s that form the proamnion
Explain why the notochord is not visible in areas where the somites are seen
Study the sea star development slides, including early and late stages and identify the following
stages and structures: zygote, two cell stage, morula (stage), blastula (stage), blastocoel
(cavity), archenteron (cavity), ectoderm (layer), endoderm (layer), gastrula (stage).
**See Table 52.1, Section 52.3 & 52.4 in textbook **
Why is it useful to study the development of sea stars (Echinodermata) when studying
human development? What do the two have in common?
Chapter 47 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 47.1 - How does the fertilization envelope form in sea...Ch. 47.1 - Prob. 2CCCh. 47.1 - MAKE CONNECTIONS Review Figure 12.16 on cell...Ch. 47.2 - In the frog embryo, convergent extension elongates...Ch. 47.2 - WHAT IF? Predict what would happen if Ca2+ was...Ch. 47.2 - MAKE CONNECTIONS Unlike some other types of birth...Ch. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 3CCCh. 47.3 - Prob. 4CC
Ch. 47 - What cell-surface event would likely fail if a...Ch. 47 - What are some functions of apoptosis in...Ch. 47 - Suppose you found two classes of mouse mutations,...Ch. 47 - Prob. 1TYUCh. 47 - Which of the following is common to the...Ch. 47 - The archenteron develops into a. the mesoderm. b....Ch. 47 - What structural adaptation in chickens allows them...Ch. 47 - Prob. 5TYUCh. 47 - In humans, identical twins are possible because a....Ch. 47 - Cells transplanted from the neural tube of a frog...Ch. 47 - DRAW IT Each blue circle in the figure below...Ch. 47 - EVOLUTION CONNECTION Evolution in insects and...Ch. 47 - Prob. 10TYUCh. 47 - Prob. 11TYUCh. 47 - Prob. 12TYUCh. 47 - SYNTHESIZE YOUR KNOWLEDGE Occasionally, two-headed...
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- What four types of cellular processes must occur to enable a fertilized egg to develop into an adult multicellular animal? Briefly discuss the role of each process. C2. The arrangement of body axes of the discuss the role of each process.arrow_forwardGive typing answer with explanation and conclusionarrow_forwardIdentify the characteristics of protostome development: Select one or more: O spiral cleavage pattern indeterminate cleavage radial cleavage pattern O blastopore becomes the anus O blastopore becomes the moutharrow_forward
- What is the importance of blastopore formation in protostomes? There may be multiple correct answers. Select one or more: O it is involved in the process of gastrulation to form the third layer of tissues in triploblastic organisms: the mesoderm O it is involved in the process of gastrulation, and will be used to release gases from the internal body of an organism O that the gastrovascular cavity of protostomes is formed by the indentation of the blastula early in development, starting with the mouth O that the gastrovascular cavity of protostomes is formed by the indentation of the blastula early in development, starting with the anus O the blastopore isn't really that importantarrow_forwardDefine and describe the main features of the following developmental stages: fertilization, cleavage, gastrulation.arrow_forwardFigure 29.22 Which of the following statements about the parts of an amniotic egg are false? The allantois stores nitrogenous waste and facilitates respiration. The chorion facilitates gas exchange. The yolk provides food for the growing embryo. The amniotic cavity is filled with albumen.arrow_forward
- ___________ removes webs between developing digits. a. Gastrulation c. Apoptosis b. Lactation d. Implantationarrow_forwardClassify and diagram embryos on the basis of their: (a) yolk content, (b) cleavage types, (3) cleavage patterns. Give examples for each. Egg Types and Cleavage Yolk Content Types of Cleavage Pattern of Cleavage Model Organism(s) Oligolecithal/ isolecithal Mesolecithalarrow_forwardInternal Anatomy of Female Grasshopper Describe the function of the grasshopper (internal). What are the similarities of the internal anatomy of the grasshopper to SPIDERS AND WORMS? What is the nature of the coelom and the circulatory system of the grasshopper?arrow_forward
- Explain how the flat embryonic disc takes on the cylindrical shape of a tadpole.arrow_forwardEnumerate the types of morphogenetic movements employed by vertebrate embryos in gastrulation. Give examples for each type. Type Drawing Example of structure/organism Invagination Involutionarrow_forwardIt asks to use the development images below to identify one of each of the following in the photos: Zygote -Morula 2-celled stage -Blastula 8-celled stage -Gastrulaarrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY