Biology: The Dynamic Science
4th Edition
ISBN: 9781337246422
Author: Peter J. Russell; Paul E. Hertz; Beverly McMillan
Publisher: Cengage Learning US
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Chapter 50, Problem 6TYK
Summary Introduction
Introduction:
The development of the three germ layers into tissues and organs is called organogenesis. The process of organogenesis varies according to the difference in the species of the organism. The development of the nervous system in the vertebrates begins with neurulation. Furthermore, the organogenesis of nervous system takes place from the outer most germ layer, ectoderm.
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Students have asked these similar questions
In the development of the nervous system, one of the following is false?
The neural tube maintains temporary contact with the yolk sac cavity via neuropores.
O a.
O b. The neural tube develops from ectoderm.
O c. The neural groove forms from the neural plate.
d. The neural folds are composed of neuroectoderm cells.
O e.
The ectoderm fuse to cover the neural crest & the neural tube is the surface ectoderm
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Which of the following is false? a. The endoderm, mesoderm, ectoderm are germ layers. b. The trophoblast is a germ layer. c. The inner cell mass is a source of embryonic stem cells. d. The blastula is often a hollow ball of cells.
Somites develop froma. paraxial mesoderm.b. intermediate mesoderm.c. lateral plate mesoderm.d. head mesenchyme
Chapter 50 Solutions
Biology: The Dynamic Science
Ch. 50.1 - Prob. 1SBCh. 50.1 - Prob. 2SBCh. 50.2 - Prob. 1SBCh. 50.2 - Prob. 2SBCh. 50.2 - Prob. 3SBCh. 50.3 - Prob. 1SBCh. 50.3 - Prob. 2SBCh. 50.4 - Prob. 1SBCh. 50.4 - Prob. 2SBCh. 50.5 - Prob. 1SB
Ch. 50.5 - Prob. 2SBCh. 50.5 - Prob. 3SBCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - In the development of the female sex organs: a....Ch. 50 - In the embryonic development of the eye: a. the...Ch. 50 - Prob. 10TYKCh. 50 - Discuss Concepts Experimentally, it is possible to...Ch. 50 - Discuss Concepts Developmental biologist Lewis...Ch. 50 - Discuss Concepts Arguably, in sexually reproducing...Ch. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - Prob. 1ITDCh. 50 - Prob. 2ITDCh. 50 - Prob. 3ITDCh. 50 - Prob. 4ITD
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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
- Along 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_forwardWhich of the following statements is FALSE? a. VegT and Veg1 induce both dorsal and ventral mesoderm. b. Veg1 and VegT induce endoderm signals. c. Beta-catenin must enter the nuclei of cells on the dorsal surface for frog development to progress normally. d. Nodal is required to induce both the Organizer and ventral mesoderm.arrow_forwardComponent of bilaminar germ disc: a.Hypoblast and endoderm b.Epiblast and hypoblast c.Epiblast and ectoderm d.Ectoderm and mesodermarrow_forward
- Label each tissue with the specific source germ cells: v Gastrointestinal tract A. Intermediate mesoderm v Superficial sensory organs B. Ectoderm v Notochord C. Endoderm D. Chordamesoderm v Gonadsarrow_forwardDuring morphogenesis, gastrulation does which of the following?A. Gastrulation produces the ectoderm through formation of a blastocyst.B. Gastrulation produces the mesoderm to form the lining of the digestive tract.C. Gastrulation provides the mechanisms whereby cells can form the neural tube.D. Gastrulation produces the endoderm through invagination of the blastula.arrow_forwardWhich of the following statements about gastrulation is correct? A. During gastrulation, the contents of cell nuclei begin to vary so that they can start to perform different fucntions. B. During gastrulation, cells differentiate so that they can start to perform different functions. C. The formation of the endoderm, mesoderm, and ectoderm occurs after gastrulation. D. The formation of the endoderm, mesoderm, and ectoderm occurs before gastrulation.arrow_forward
- Odontoblasts are derived from a. Ectoderm b. Endoderm c. Histiocytes d. Undifferentiated mesenchymal cellsarrow_forwardThe embryos of complex multicellular animals must establish spatial coordinates if development is to proceed. An important reference coordinate for developing frogs is theA. location of the vegetal pole.B. location of the animal pole.C. point of sperm penetration.D. location where gastrulation begins.E. direction of the sun.arrow_forwardMatch the germ layer on the right with its contribution to the tissues and organs of the embryo, on the left. v connective tissue stroma A. mesoderm v parenchymal cells, e.g., liver B. ectoderm C. mesoderm D. mesoderm E. endoderm F. endoderm vasculature v innervation v epithelium of enteric secretory duct tubes v epithelium of integumentary system G. ectoderm v elastic membranearrow_forward
- Which of the following statements is false? a. Cadherins, but not integrins play a role in gastrulation. b. Gastrulation creates the primary germ layers c. Gastrulation requires cells to change their gene expression. d. Body axes are stabilized (made permanent) during gastrulation.arrow_forwardWhich of the following statements is incorrect?a. The placenta secretes hormones such as progesterone, hCG, and estrogen.b. Embryonic tissue and maternal tissue forms the placenta.c. The chorion supplies nutrients to the embryo by diffusion.d. The umbilical cord is formed by one artery and two veinsarrow_forwardWhat are the pathways through which a neural tube defect can occur? Select one or more: V A. Failure of initiation of neural tube closure V B. Failure to fuse the elevated neural folds V C. Abnormalities in adhesion of surface ectodermal cells V D. Altered differentiation of neuromesodermal progenitors at the sacral levelarrow_forward
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