Campbell Biology: Custom Edition For The University Of Maryland
15th Edition
ISBN: 9781269920490
Author: Reece, Urry, Cain, Wasserman, Minorsky, Jackson
Publisher: Pearson Custom Publishing
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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?
Examine whether the statement "Because of the many later developmental transformations that produce the elaborately structured organs, the body plan set up during gastrulation bears little resemblance to the body plan in the adult is true or false.
Which 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 embryo
Chapter 47 Solutions
Campbell Biology: Custom Edition For The University Of Maryland
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 - Prob. 47.2CRCh. 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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- Match each developmental stage with its description.arrow_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
- Endodermal Derivatives of the Developing Chick Embryo (A) 33-hour Chick Embryo Transverse Sections (B) 48-hour Chick Embryo Transverse Sections (C) 72-hour Chick Embryo Transverse Sections QUESTIONS: 1. What is the fate of the postanal gut?arrow_forwardWhich statement accurately describe somites? derived from neural crest tissue on the ventral surface of the embryo series of tissue blocks lateral to the neural tube a shared derived feature seen only in gnathostomes one pair forms the pectoral girdle and the other forms the pelvic girdlearrow_forwardDraw an egg in its blastula stage and label the parts. What are its distinguishing charcteristics (the blastula) from other embryological stages?arrow_forward
- Enumerate the types of morphogenetic movements employed by vertebrate embryos in gastrulation. Give examples for each type. Type Drawing Example of structure/organism Invagination Involutionarrow_forwardExplain how the flat embryonic disc takes on the cylindrical shape of a tadpole.arrow_forwardIllustrate an egg in early cleavage, distinguish this stage from thise that follow (2,4,8 cell stages; collectively called as blastomere). Labelarrow_forward
- The cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called mesenchyme Group of answer choices A. mesoderm B. endoderm C. meroblastic D. macrolecithalarrow_forwardA gastrulation does NOT Select one: A. Consist of endoderm, mesoderm, and ectoderm B. Result in the formation of a third layer in the embryonic disc C. Involve the formnation of germ layers D. Include the differentiation of cells into tissues and organsarrow_forwardIn the early stages of amphibian development, what layer is involved in yolk digestion? What is the basis for the distinction between germ layers in gastrulation? (min. 5 sentences)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