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 32, Problem 7TYK
Summary Introduction
Introduction: Animals are multicellular eukaryotes and have heterotrophic (ingest food and digest them by certain digestive enzymes) mode of nutrition. Animals have a highly developed sensory and nervous system.
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The following diagram is of the blastopore stage of embryonic development. Based on the information in the diagram, which of the following statements is correct
a. Most animals exhibit this pattern of development.
b. It would have formed by spiralian cleavage.
c. It would exhibit determinate development.
d. All of the choices are correct.
Which of the following is not true about avian eggs? Choose all possible answers.
a. exhibit holoblastic cleavage
b. first cleavages are perpendicular to the plane of the blastodisc, and approximately at right angles to one another
c. at the time of the fourth cleavage, a furrow running parallel to the circumference of the blastodisc separates central from peripheral forming blastomeres.
d. portion of the undersurface of the blastoderm that is farthest from the source of gravity becomes the anterior end of the embryo.
e. All of the following are true about eggs of frogs.
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 false
Chapter 32 Solutions
Study Guide for Campbell Biology
Ch. 32 - a. What is a larva? b. How does a larva differ...Ch. 32 - Describe the three hypotheses for the rapid...Ch. 32 - Prob. 3IQCh. 32 - Prob. 4IQCh. 32 - Fill in the blanks in the following simplified...Ch. 32 - Prob. 1TYKCh. 32 - The process during which the germ layers are...Ch. 32 - Prob. 3TYKCh. 32 - Prob. 4TYKCh. 32 - Prob. 5TYK
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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
- Which 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_forwardLabel 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_forwardStudy the sea star development slides, including early and late stages and identify the following stages and structures: zygote, two cell stage, morula (stage), blastula (stage), blastocoel (cavity), archenteron (cavity), ectoderm (layer), endoderm (layer), gastrula (stage). **See Table 52.1, Section 52.3 & 52.4 in textbook ** Why is it useful to study the development of sea stars (Echinodermata) when studying human development? What do the two have in common?arrow_forward
- During 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_forwardFrom a 24-hour chick embryo, provide the answers in the following: Pairs of somites in a 24-hour chick embryo Germ layer/s that forms the head process What begins the formation head of process Germ layer/s that form the proamnion Explain why the notochord is not visible in areas where the somites are seenarrow_forwardObservation of the development of embryos in sea stars shows the mesoderm forming pouches bulging from the archenteron to form the coelom. From this observation, you can predict that A. the cleavage of the embryo is radial. B. the adult animal will have bilateral symmetry. C. the mouth forms from the first opening in the gastrula. D. the animal is diploblastic.arrow_forward
- Which of the following describes the importance of the formation of the morula in earlyhuman development?A. it is the process that initiates gastrulationB. it is the process that initiates the formation of the epiblast and hypoblastC. it is the process that initiates the formation of the trophoblast and inner cell massD. it is the process that initiates the formation of the trophoblast and epiblastarrow_forwardWhich of the following plays the greatest role in determining how cytoplasmic division occurs during cleavage? a. Number of chromosomes b. Amount of yolk c. Orientation of the vegetal pole d. Sex of the zygotearrow_forwardRead 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 incorrectarrow_forward
- 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 an INCORRECT statement? Question 6 options: a) The early embryo of a higher animal is never like a lower animal, but only like its early embryo. b) During the first three stages of development, blastomeres become smaller by way of each embryonic cleavage. c) The space inside of the neural tube will eventually become the space inside of the digestive system. d) A zygote results from the union of sperm and egg.arrow_forwardAll of the following are true about humans EXCEPT: A. our zygote and early embryo cells have indeterminate cleavage B. Our blastopore becomes our mouth C. We are eumetazoan triploblastic bilateral deuterostomes D. our early embryo cells are sort of radially arranged but with rotational cleavagearrow_forward
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