Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 28, Problem 13RQ
Describe and distinguish patterns of reproduction in monotremes, marsupials, and placental mammals. What aspects of mammalian reproduction characterize all mammals but no other vertebrates?
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Chapter 28 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 28 - Describe the evolution of mammals, tracing their...Ch. 28 - Describe structural and functional adaptations...Ch. 28 - Hair is hypothesized to have evolved in therapsids...Ch. 28 - What is distinctive about each of the following:...Ch. 28 - Describe location and principal function(s) of...Ch. 28 - Define diphyodont and heterodont and explain why...Ch. 28 - Prob. 7RQCh. 28 - Most herbivorous mammals depend on cellulose as...Ch. 28 - How does fermentation differ between horses and...Ch. 28 - Prob. 10RQ
Ch. 28 - Describe the annual migrations of barren-ground...Ch. 28 - Prob. 12RQCh. 28 - Describe and distinguish patterns of reproduction...Ch. 28 - Distinguish between territory and home range for...Ch. 28 - Describe the hare-lynx population cycle,...Ch. 28 - Prob. 16RQCh. 28 - Prob. 17RQCh. 28 - What role do the fossils named Ardi and Lucy play...Ch. 28 - Prob. 19RQCh. 28 - When did the different species of Homo appear and...Ch. 28 - Prob. 1FFT
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- Is fecundation in mammalsinternal or external?arrow_forwardThe reproductive strategy of giving birth to premature young, which have to crawl into the mother’s pouch for several days, first appeared in which of the following viviparous mammalian groups? prototherian mammals (like the duck-billed platypus) monotremes (like the spiny echidna) eutherian mammals (like the dog) placental mammals (like the beaver) metatherian mammals (like the red kangaroo)arrow_forwardWhat are homeotic genes and what is the “homeobox” contained in such genes? What is the function of the homeobox? What are Hox genes? What is the significance of their apparently universal occurrence in animals?arrow_forward
- Define the following terms with respect to mammalian development •Chormesodermal mantle •Somites •Neural plate •Neural tube •Neural crest •Spinal cord •Embryonic inductionarrow_forwardWhich of the following is true about Sea urchin blastula formation and fate map? a) ectoderm that develops into the larval skin and neurons, is regularly produced by the vegetal half of the embryo. b) an1 layer generates cells that can enter either the ectodermal or endodermal organs of the larva. c) veg2 layer forms the endoderm, coelom (internal mesodermal body wall), and the non- skeletogenic mesenchyme. d) small micromeres differentiate into the PGCS e) large micromeres differentiate into the secondary mesenchyme cellsarrow_forwardConsidering a range of animals, what are the benefits of limiting reproduction to a specific time frame? Why do so many animal species have clearly defined reproductive seasons?arrow_forward
- What are the main orders of placental mammals? What are some representative species and distinguishing features of each of those orders?arrow_forwardBriefly describe the reproductive behavior of frogs. In what impor-tant ways do leopard frogs (Lithobates pipiens) and pygmy salamanders (Desmognathus wrighti) differ in their reproduction?arrow_forwardDescribe the development of the notochord. Include the terms primitive pit, notochordal process, notochordal canal, neurenteric canal, notochordal plate, ectoderm, mesoderm, and endoderm in your descriptions. Include labeled diagrams in your description. With respect to the developing notochord, where is the cloacal membrane, allantois, embryonic ectoderm, embryonic endoderm, and embryonic mesoderm with reference to the developing notochord.arrow_forward
- In mammals, distinguish and differentiate the following germinal layers. Identify the organs that will arise from each of them: 1. Endoderm 2. Mesoderm 3. Ectodermarrow_forwardBriefly explain how radial symmetry and the lack of cephalization usually associated with it can have adaptive value for sessile animals and be favored by natural selection.arrow_forwardA terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and modified segmentation. What other feature(s) might á knowledgeable zoologist predict that the adults of this species would have? Choose all that apply an open circulatory system a brain and nervous system a two chambered heart an amnioțic eggarrow_forward
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