Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 43, Problem 1FIB
Summary Introduction
Introduction:
The fertilization process takes place when the sperm from the male fertilizes the female oocyte in the uterus of the egg. It leads to the formation of the zygote which later develops to form the embryo.
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From which of the following is the embryo developed?
Trophoblasts
Inner cell mass
Blastocoelen
The yellow sacks
......... is not developmental event in human and frog.
After fertilization rapid cycle of mitosis occurs
formation of mesoderm,ecto and endoderm
formation of placenta from trophoblast
large cellular movement during gastrulation
All of the cell types of an adult vertebrate develop from three primary embryonic germ cell layers, e.g. skin epithelium originates from ____ and intestinal epithelium from ____.
A)ectoderm, endoderm
B)ectoderm; ectoderm
C)endoderm; endoderm
D)endoderm; ectoderm
Chapter 43 Solutions
Biology
Ch. 43.1 - define development and describe how cell division...Ch. 43.2 - Prob. 1CYLCh. 43.3 - describe early development in amphibians,...Ch. 43.3 - Prob. 2CYLCh. 43.4 - Prob. 1TCCh. 43.4 - Prob. 2TCCh. 43.4 - Does the development of a human limb, and the rest...Ch. 43.4 - Prob. 1CYLCh. 43.4 - Prob. 2CYLCh. 43.5 - Prob. 1TC
Ch. 43.5 - Prob. 1CSCCh. 43.5 - Prob. 2TCCh. 43.5 - Prob. 3TCCh. 43.5 - Prob. 1HYEWCh. 43.5 - describe human embryonic development from...Ch. 43.5 - describe the structure and function of the...Ch. 43.5 - Prob. 3CYLCh. 43.6 - Prob. 1TCCh. 43.6 - Prob. 1CYLCh. 43.6 - Prob. 2CYLCh. 43.6 - Prob. 3CYLCh. 43.6 - Prob. 2TCCh. 43 - Prob. 1MCCh. 43 - Animals with Indirect development a. develop...Ch. 43 - Prob. 3MCCh. 43 - Prob. 4MCCh. 43 - Prob. 5MCCh. 43 - Prob. 6MCCh. 43 - Prob. 7MCCh. 43 - Prob. 8MCCh. 43 - Prob. 1FIBCh. 43 - Prob. 2FIBCh. 43 - Prob. 3FIBCh. 43 - Prob. 4FIBCh. 43 - Distinguish between direct and indirect...Ch. 43 - Describe the structure and function of the four...Ch. 43 - What is gastrulation? Describe gastrulation in...Ch. 43 - Prob. 4RQCh. 43 - Prob. 5RQCh. 43 - In humans, where does fertilization occur, and...Ch. 43 - Prob. 7RQCh. 43 - Prob. 8RQCh. 43 - How do changes in the breast prepare a mother to...Ch. 43 - Prob. 10RQCh. 43 - Prob. 1ACCh. 43 - Prob. 2AC
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- The ___________________ of an egg serves as an embryos water supply while the ____________ provides a structure for gas exchange. A albumen; yolk B amnion; allantois C albumen; allantois D allantois; albumenarrow_forwardFill in the blank: The embryonic membrane that is attached to the edge of the embryonic disk and surrounds the developing body is called the ___________________.arrow_forwardIn embryos with spiral cleavage the 4d cell gives rise to which germ layer_______________________________. Group of answer choices endoderm gastroderm mesoderm ectoderm epidermarrow_forward
- Fill in the blank: _________________ fluid protects the embryo from jarred movements and provides a watery environment fordevelopment.arrow_forwardA: Why do sea urchins have external fertilization? [Discuss the life style of the developing sea urchin embryo in the water column compared to a very different ecological niche of the adults on the ocean floor. Besides, would you want to give live birth to a sea urchin! ouch!] 2: Then why don't the parents take care of the young? [In fact the adults do in a way. After the embryo has grown large enough and metamorphosed into a young urchin they hide in the spines of the adults, living off of the scraps of food produced from the messy eating of the adults] 3: Because the urchin life involves two or more ecological niches, they are more susceptible to predation and exposure to environmental toxins. What environmental conditions, predators and toxins might they be exposed to at each stage?arrow_forwardA fertilized egg, also called a________ , is a very large cell. One of the first events of animal development is the division of this cell, a process called______ , to produce a solid ball of much smaller cells, the_______. Soon, a cavity opens in this ball of cells, producing a hollow ball called the__________ . Movements of cells in this hollow ball during gastrulationproduce the three embryonic tissue layers, the______,________ , and________ .arrow_forward
- At which of the following stages of development is a frog embryo composed of the most cells? Group of answer choices A. blastula B. neural tube stage C. gastrula D. zygote (fertilized egg)arrow_forwardFrom which of the following is the embryo developed? a) Trophoblasts b) Blastocoelen c) The yellow sacks d) Inner cell massarrow_forwardIn mammals, primordial germ cells migration ends when they reach the _________________ posterior epiblast germinal granules genital ridges germ plasm 5. fast block to polyspermyarrow_forward
- 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 embryoarrow_forwardPut these human developmental events in order, from earliest to latest a. blastocyst forms d. implantation b. heart begins beating e. breathing practice begins c. gastrulation f. neural tube formsarrow_forwardWhich of the following are mismatched? (a) endoderm; lining of the digestive tube (b) ectoderm; circulatory system (c) mesoderm; notochord (d) mesoderm; reproductive system (e) ectoderm; sense organsarrow_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