Campbell Biology
12th Edition
ISBN: 9780135188743
Author: 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
Development
Label the following embryo development stages and cells:zygote, blastocoel,
embryoblasts, blastomeres, morula, biastocyst, zona pellucida, trophohlasts
Zuna
pelmicida
Stage: 3 Zy90+€
trophoblest
blastucuel
empryoblost
Stage: OORa
Stage:
blaşt oist
How does the overall size of the early embryo compare with the size of the zygote?
Explain.
At which stage of development does the embryo implant in the uterus?
Chapter 47 Solutions
Campbell Biology
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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?arrow_forwardWhat 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_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
- State and explain 5 effects of tobacco smoking by a pregnant mother on the foetus development. (400 words) Identify and explain 5 disadvantages of In vitro fertilisation (IVF) as an intervention to have a baby. (400 words) Why is breast feeding in the first 3month of a baby very important? (200 words) Higher animals undergo sexual reproduction despite its complexity, why. Give 5 reasons. (400 words) Describe five changes that occur in a flower after fertilisation. (200 words)arrow_forwardPart IlI: Discussion 1. How can you distinguish an unfertilized egg from a fertilized egg? 2. As development proceeds from zygote to morula, what happens to the: a. number of cells? b. size of cells? C. size of the cell mass? 3. Construct a table listing the three germ layers of the gastrula and the major body portions formed from each Jayer. 108 Lab 33arrow_forwardWhich statement does NOT accurately describe somites? series of tissue blocks form the ribs and intercostal muscles paired structures running along either side of the neural tube derived from neural crest tissue on the ventral surface of the embryoarrow_forward
- Complete the following table with the functions of each of the embryonic membranes: Embryonic Membrane Function Yolk sac Chorion & Chorionic villi Allantois Amnionarrow_forwardWhat 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_forward
- Figure 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_forwardDescribe and label a nematocyst and the cell containing it. Describe how nematocysts fire. How does the firing mechanism and structure vary phylogenetically [among classes]?arrow_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