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 11TYU
Summary Introduction
Introduction: During the development of the embryo, various types of structures are formed such as a blastocyst, trophoblast, umbilical cord, inner cell mass, and yolk sac. These structures help in the proper development of embryo during the entire gestation period.
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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 are the roles of the chorion and amnion in terrestrial vertebrate embryos?arrow_forwardA 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_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
- What do you call the movement in which the yolk plug is formed in amphibians?arrow_forwardWhat structural adaptation in chickens allows them to lay theireggs in arid environments rather than in water?(A) extraembryonic membranes(B) yolk(C) cleavage(D) gastrulationarrow_forwardDuring embryonic development, a neural crest would be found in all of the following chordates, except a. cephalochordates. b. reptiles. c. birds. d. mammals.arrow_forward
- What is NOT true about embryo development? A. a morula is an earlier stage than a gastrula B. Gatrulation creates endoderm and ectoderm in most animals C. Mammal blastulas are called blastocysts due to the thickened area where the embryo develops D. diploblastic animals have mesodermarrow_forwardIn mammals, distinguish and differentiate the following germinal layers. Identify the organs that will arise from each of them: 1. Endoderm 2. Mesoderm 3. Ectodermarrow_forwardInvestigate how the mass of the inert yolk affects reptiles, mammals and amphibians gastrulationarrow_forward
- Characteristics that evolved in birds to allow for flight includea. reptilian-like scales on the legs.b. a hard-shelled amniotic egg.c. internal fertilization.d. thin, hollow bones in the skeleton.arrow_forwardHumans have a coccyx at the end of the vertebral column. What structure common to all vertebrate embryos resulted in the coccyx? a buds b pharyngeal pouches c tail d late cleavagearrow_forwardAlong the notochord, segmented blocks of tissue that give rise to muscles, vertebrae, and connective tissues are calleda. neural crests.b. morulas.c. primitive streaks.d. somitesarrow_forward
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