Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 47, Problem 5TYK
Summary Introduction
Introduction: The embryo contains three types of germ layers. The outermost layer is termed as ectoderm, while the inner layer is termed as endoderm. There is a layer present between the ectoderm and endoderm. This layer is termed as the mesoderm.
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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.
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
Which of the following rows correctly identifies the development of the germ layers?
Select one:
A.
Endoderm
Mesoderm
Ectoderm
Placenta
Muscle
Hair and nails
B.
Endoderm
Mesoderm
Ectoderm
Stomach and intestine Lining
Reproductive system
Brain and Spinal Cord
C.
Endoderm
Mesoderm
Ectoderm
Muscle
Bones
Epidermis
D.
Endoderm
Mesoderm
Ectoderm
Lungs and stomach linings
Heart and Lungs
Liver and pancreas
Chapter 47 Solutions
Study Guide for Campbell Biology
Ch. 47 - a. What assures that only a sperm of the correct...Ch. 47 - Prob. 2IQCh. 47 - Prob. 3IQCh. 47 - Prob. 4IQCh. 47 - Label the indicated structures in the following...Ch. 47 - Prob. 6IQCh. 47 - Prob. 7IQCh. 47 - Prob. 1SYKCh. 47 - Fill in the following table, briefly describing...Ch. 47 - Prob. 1TYK
Ch. 47 - Prob. 2TYKCh. 47 - The blastocoel a. develops into the archenteron or...Ch. 47 - In a frog embryo, gastrulation a. is slowed by the...Ch. 47 - Prob. 5TYKCh. 47 - Prob. 6TYKCh. 47 - Prob. 7TYKCh. 47 - Prob. 8TYKCh. 47 - To which portion of the developing embryo do cells...Ch. 47 - Prob. 10TYKCh. 47 - Prob. 11TYKCh. 47 - Prob. 12TYKCh. 47 - Use the following diagram of a chick embryo for...Ch. 47 - During gastrulation in the frog embryo, a new...Ch. 47 - Gastrulation and organogenesis in mammals most...Ch. 47 - Prob. 16TYKCh. 47 - Prob. 17TYKCh. 47 - Prob. 18TYKCh. 47 - Prob. 19TYKCh. 47 - Prob. 20TYK
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- Which of the following gives rise to the skin cells? a. ectoderm b. endoderm c. mesoderm d. none of the abovearrow_forwardWhat 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_forwardWhich of the following cell layers is not necessary to be considered a eumetazoan? a. Ectoderm b. Endoderm c. Mesoderm d. All of the above are found in all eumetazoans.arrow_forward
- Which of the following is not derived from the ectoderm? a. adrenal medulla b. epidermis of skin c. liver d. nervous systemarrow_forwardWhich of the following correctly identifies the stages in embryonic development between weeks 2 and 8? Select one: a. Formation of placenta → neurulation → organ formation → gastrulation b. Gastrulation → organ formation → neurulation → formation of placenta c. Gastrulation → neurulation and placental formation → organ formation d. Formation of placenta → gastrulation → organ formation → neurulationarrow_forwardAt which stage of embryogenesis, major patterns of the internal tissues of the embryo have been already established? A. Octant stage embryo B. Globular stage embryo O C. Heart-shaped stage embryo O D. Torpedo stage embryoarrow_forward
- What 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_forwardOdontoblasts are derived from a. Ectoderm b. Endoderm c. Histiocytes d. Undifferentiated mesenchymal cellsarrow_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_forward
- Component of bilaminar germ disc: a.Hypoblast and endoderm b.Epiblast and hypoblast c.Epiblast and ectoderm d.Ectoderm and mesodermarrow_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_forwardWhen does an embryo become a fetus? Select one: a. When gastrulation forms the three primary germ layers b. When neurulation forms the brain and the spinal cord c. As soon as the heart begins to beat d. When organ formation completesarrow_forward
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