BIOLOGY VOL.1 W/CONNECT PLUS ACCESS
3rd Edition
ISBN: 9781259303784
Author: BROOKER
Publisher: MCG CUSTOM
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Chapter 32, Problem 5TY
Summary Introduction
Introduction: A body cavity is defined as an internal space within an animal that contains organs. A coelom is defined as a fluid-filled body cavity. In case of animals with a true coelom, the body cavity is completely lined with mesoderm. Such animals are known as coelomates.
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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 Gonads
Read following statements A and B and choose the correct option.
Statement-A : Taenia is triploblastic, acoelomate having solid mesoderm and alimentary canal is absent. Statement-B : In Planaria, fertilization is external, indirect development through many larval stages and possess low regeneration capacity.
a.Only statement A is correct
b.Only statement B is correct
c.Both statements A and B are correct
d.Both statements A and B are incorrect
If cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface of a second gastrula where skin would normally develop, the transplanted cells will still develop into tissues of the nervous system. This experiment shows that the transplanted cells areA. differentiated.B. totipotent.C. discontinuous.D. determined.E. endodermal.
Chapter 32 Solutions
BIOLOGY VOL.1 W/CONNECT PLUS ACCESS
Ch. 32.2 - What shored derived character is common to the...Ch. 32.2 - Prob. 1CCCh. 32.2 - Core Skill: Connections Look back to Figure 25.8....Ch. 32.2 - Prob. 2CCCh. 32.3 - Prob. 1BCCh. 32.3 - Prob. 1CCCh. 32.3 - Prob. 1EQCh. 32.3 - Prob. 2EQCh. 32.3 - Prob. 3EQCh. 32 - Prob. 1TY
Ch. 32 - Prob. 2TYCh. 32 - Prob. 3TYCh. 32 - In triploblastic animals, the inner lining of the...Ch. 32 - Prob. 5TYCh. 32 - Prob. 6TYCh. 32 - Prob. 7TYCh. 32 - Naturally occurring identical twins are possible...Ch. 32 - Prob. 9TYCh. 32 - A major finding of recent molecular studies is...Ch. 32 - Prob. 1CQCh. 32 - Why was the evolution of a coelom important?Ch. 32 - Prob. 3CQCh. 32 - Discuss the many ways that animals can affect...Ch. 32 - Prob. 2COQ
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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 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.arrow_forwardOdontoblasts are derived from a. Ectoderm b. Endoderm c. Histiocytes d. Undifferentiated mesenchymal cellsarrow_forward
- What are the correct pairings of developing and embryonic structures in the gastrulation of chickens? Multiple answers is possible. If no correct option is given write the proper pairings. a. Epiblast – ectoderm b. Secondary hypoblast – endoderm c. Primary hypoblast – endoderm d. Migrating cells - mesodermarrow_forwardIn 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 Clear my choice marks Jump to... ©2020 SKITCE-AQU/Powered by Moodle A https://www.alguds.edu eclass@alguds.eduarrow_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
- Internal and external fertilization differ in that species thata. produce an amniotic egg have internal fertilization.b. without an amniotic egg have external fertilization.c. produce live young have mammary glands.d. lay eggs are external fertilizersarrow_forwardIn the development of the nervous system, one of the following is false? O a. The neural tube maintains temporary contact with the yolk sac cavity via neuropores. 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. e. The ectoderm fuse to cover the neural crest & the neural tube is the surface ectoderm. Clear my choicearrow_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
- An unidentified substance (or substances) released from the developing notochord causes the overlying ectoderm to form the neural plate. This phenomenon is known as (a) activation (b) determination (c) induction (d) implantation (e) mosaic developmentarrow_forwardWhat are the correct pairings of developing and embryonic structures in the gastrulation of chickens? a. Epiblast- ectoderm c. Primary hypoblast-endoderm Read the following statements CAREFULLY: I. II. III. IV. b. Secondary hypoblast - endoderm d. Migrating cells - mesoderm The germ band needs to retract for fruit fly segments to develop properly. The formation of the sea urchin archenteron is made possible by epithelial cells that underwent epithelial-to-mesenchymal transition. Frog gastrulation involves the epiboly of endoderm cells. Chicken endoderm and mesoderm is formed through the migration of cells through both the anterior and posterior end of the primitive streak. a. All choices are true b. I & Il are true but IV is false d. IV is sometimes true c. Ill is falsearrow_forwardC. Why do sea urchins have external fertilization? D. Then why don't the parents take care of the young? E. 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_forward
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