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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Chapter 28, Problem 1FFT
Summary Introduction
To explain: The reason why mammalian teeth are considered as an important feature responsible for mammalian success than that of other features such as lactation, hair, or ectothermy.
Introduction: Living amniotes are classified under two clades, namely, Mammalia, and Reptilia (which include birds, crocodilians, lepidosaurs, and turtles). The mammals belong to class Mammalia, and their main features are the presence of mammary glands, three middle ear bones, fur or hair, and a neocortex.
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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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- Often relinquishing the young ones going to food shortage is one of the common behaviour as exhibit by mice. clarify how this conduct might have developed due to the life history and reproductive compromisesarrow_forwardUngulates Ungulates, such as deer, reindeer, and elk, are hoofed mammals. These animals have keen hearing, clear vision, supple, well-conditioned muscles, and razor sharp reflexes. The evolution of the four-chambered stomach in ungulates developed as a result of a need to eat quickly in the open and chew later in the safety of cover. This process is called ruminating or "chewing the cud." In other words, ungulates regurgitate and then re- chew their food. Which of the following would be considered a physiological adaptation of ungulates? A) their four-chambered stomach B) their long legs, which help them outrun predators C) their ability to stand perfectly still, which helps them avoid predators D) their ability to hibernate to avoid cold wintersarrow_forwardWhat Australian marsupial has habits and appearance similar to a ground hog? Where are there over 250 species of fruit flies (Drosophila)? In what group of mammals the did the number of cusps and side-to-side ridges on the teeth increase?arrow_forward
- Thousands of years ago, the jaws and teeth of jaguars were more varied in size than they are today. During a period of climate change about 11,000 years ago, jaguars faced a shortage of food. There were fewer mammals to eat, so the jaguars had to eat shelled reptiles. The jaguars with the largest jaws and teeth could most easily eat the shelled reptiles. Which of the following statements best explains why large jaws and teeth are common characteristics in jaguars today? Jaguars with smallest jaws and teeth died out completely. Jaguars with the smallest jaws and teeth were not able to mate. Jaguars with the largest jaws and teeth survived and reproduced more successfully than the other jaguars. Jaguars with the largest jaws and teeth strengthened them by using them more frequently than the other jaguars.arrow_forwardPharyngeal slits are which of the following? Question 24 options: a) Openings in the pharynx. In aquatic chordates they allow for exit of water that enters the mouth. b) Elongations of the posterior portion of the body. Use for locomotion in fish, or balance in some terrestrial vertebrates. c) Flexible, rod-shaped structures that grows from mesoderm. Gives support to an animal in embryonic development of chordates or for entire life depending on the species. d) Tissues that produces thyroid type hormones. e) Hollow tubes that develops from ectoderm. Develops into the central nervous system.arrow_forwardWhat makes the Ardipithecus ramidus is distinct from members of the species Australopithecus afarensis because of its larger molars smaller and less molar-like premolars large canines b and carrow_forward
- Amphioxus long has been of interest to zoologists searching for a vertebrate ancestor. Explain why amphioxus captured such interest and why it no longer is considered to resemble closely the direct ancestor of the vertebrates.arrow_forwardoften relinquishing the young ones owing to food shortage is one of the common behaviours exhibited by mice.clarify how this conduct might have developed due to history and reproductive compromisesarrow_forwardAll of these characteristics of P. aethiopicus suggest that it may represent an evolutionary connection between A. afarensis and P. boisei, EXCEPT: Pneumatized mastoid region Brain size of 410 cc Compound temporal-nuchal crest Large posterior an anterior dentition Sagittal crest that extends from posterior to anterior on the cranial vaultarrow_forward
- Make a table to identify amle and female homologues and describe it common function. Minimum of 7 organs.arrow_forwardGive reasons why the frog is chosen to be studied in all Biology classes, as the representative of all animals in the animal kingdom.arrow_forwardSharp and pointed molars are useful for primates to eat: A. Leaves B. Insects C. Lizards D. Fruitarrow_forward
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