Question 1

An area occupied by a mammal that it defends against invasion by other members of the same species is called its ___________.

Accepted Answer

The answer of An area occupied by a mammal that...

Question 2

The growth of antlers causes an animal to

Accepted Answer

A) become aggressive. 
B) become anemic. 
C) increase intake of protein. 
D) increase intake of calcium salts. 
E) All of the choices are correct 
A) become aggressive. 
B) become anemic. 
C) increase intake of protein. 
D) increase intake of calcium salts. 
E) All of the choices are correct

Question 3

Rhinoceros horns differ from other horns or antlers because they

Accepted Answer

A) are not attached to the skull. 
B) are shed annually. 
C) consist of hair-like keratinized filaments that arise from dermal papillae cemented together but not attached to the skull. 
D) are one big hair follicle. 
E) can be easily harvested from living animals without harming the animal. 
A) are not attached to the skull. 
B) are shed annually. 
C) consist of hair-like keratinized filaments that arise from dermal papillae cemented together but not attached to the skull. 
D) are one big hair follicle. 
E) can be easily harvested from living animals without harming the animal.

Question 4

Which of the following is NOT correct?

Accepted Answer

A) Most mammals have definite mating seasons 
B) Many male mammals are capable of fertile copulation at any time 
C) The estrous cycle allows females to mate at any time of the year 
D) Estrus is a short period of mammalian "heat." 
E) All of the choices are correct 
A) Most mammals have definite mating seasons 
B) Many male mammals are capable of fertile copulation at any time 
C) The estrous cycle allows females to mate at any time of the year 
D) Estrus is a short period of mammalian "heat." 
E) All of the choices are correct

Question 5

Compare the horns of the pronghorn antelope with the true horns of bovids and the horns of the giraffe.

Accepted Answer

The horns of the pronghorn antelope are

Question 6

Which is NOT a strategy for mammalian herbivores digesting cellulose?

Accepted Answer

A) Regurgitation and rechewing 
B) Special anaerobic bacterial "vats" where cellulose-digesting bacteria can break down grasses,etc. 
C) Consuming feces in order to pass food through the digestive system twice 
D) A side-pocket or diverticulum called a cecum 
E) Directly digesting cellulose by stomach enzymes 
A) Regurgitation and rechewing 
B) Special anaerobic bacterial "vats" where cellulose-digesting bacteria can break down grasses,etc. 
C) Consuming feces in order to pass food through the digestive system twice 
D) A side-pocket or diverticulum called a cecum 
E) Directly digesting cellulose by stomach enzymes

Question 7

Explain why the mammalian lineage,alive and well during the "reign of the dinosaurs," may have been evolutionarily "depressed" in the ecological sense of the word.

Accepted Answer

During the "reign of the dinosaurs," the

Question 8

A duckbilled platypus is an exception to many mammals because it

Accepted Answer

A) doesn't give live birth but lays eggs. 
B) is "cold-blooded" or not homeothermic/endothermic. 
C) lacks hair. 
D) doesn't secrete milk. 
E) All of the choices are correct 
A) doesn't give live birth but lays eggs. 
B) is "cold-blooded" or not homeothermic/endothermic. 
C) lacks hair. 
D) doesn't secrete milk. 
E) All of the choices are correct

Question 9

Compare the morphology and likely physiology of pelycosaurs and therapsids.

Accepted Answer

Pelycosaurs and therapsids are both exti

Question 10

Discuss the importance of NOT over-harvesting wild stocks of animals.What might happen,especially if the world's predatory species decline precipitously because of over-harvesting?

Accepted Answer

Over-harvesting wild stocks of animals c

Question 11

Discuss the significance of the evolution of a true placenta.Why would this have been an evolutionary milestone?

Accepted Answer

The evolution of a true placenta is sign

Question 12

True horns are

Accepted Answer

A) the same as antlers. 
B) restricted to males. 
C) not normally shed. 
D) usually branched. 
E) seasonal and not continuously grown. 
A) the same as antlers. 
B) restricted to males. 
C) not normally shed. 
D) usually branched. 
E) seasonal and not continuously grown.

Question 13

Discuss the recent fossil evidence on the origin of whales.What evidence suggests that they are the sister group to the hippopotamus?

Accepted Answer

Recent fossil evidence on the origin of

Question 14

Egg-laying mammals,such as the duck-billed platypus,are collectively called ___________.

Accepted Answer

The answer of Egg-laying mammals,such as the duck-billed platypus,are collectively...

Question 15

Typically,mammals produce two sets of teeth during their lifespan,a kind of dentition called ___________.

Accepted Answer

The answer of Typically,mammals produce two sets of teeth during...

Question 16

The secretion that serves as a dressing for the skin and hair is produced by the ______ ______.

Accepted Answer

The answer of The secretion that serves as a dressing...

Question 17

Place Paranthropus robustus,Ardipithecus ramidus,Sahelanthropus tchadensis,Australopithecus anamensis,Australopithecus africanus,Australopithecus afarensis,Homo erectus,Homo habilis,and Homo sapiens in a general phylogeny.Where do the Neanderthals fit into this scheme,and why?

Accepted Answer

The general phylogeny of these hominid s

Question 18

The barren-ground _____ undergo annual migrations from winter ranges on the tundra to summer ranges in the boreal forest.

Accepted Answer

A) antelope 
B) lemmings 
C) caribou 
D) snowshoe hare 
E) polar bears 
A) antelope 
B) lemmings 
C) caribou 
D) snowshoe hare 
E) polar bears

Question 19

Hares,rabbits,and some rodents pass food through their digestive tract twice because

Accepted Answer

A) their food supply is scarce and limiting. 
B) it saves on energy for chewing. 
C) it decreases the impact on the environment by half. 
D) it allows more time for the fermenting action of intestinal microorganisms. 
E) they are just animals with disgusting habits. 
A) their food supply is scarce and limiting. 
B) it saves on energy for chewing. 
C) it decreases the impact on the environment by half. 
D) it allows more time for the fermenting action of intestinal microorganisms. 
E) they are just animals with disgusting habits.

Question 20

Which is missing from this list: incisors,molars,canines and ___________?

Accepted Answer

The answer of Which is missing from this list: incisors,molars,canines...

Exam 28: Mammals

An area occupied by a mammal that it defends against invasion by other members of the same species is called its ___________.

The growth of antlers causes an animal to

Rhinoceros horns differ from other horns or antlers because they

Which of the following is NOT correct?

Compare the horns of the pronghorn antelope with the true horns of bovids and the horns of the giraffe.

Which is NOT a strategy for mammalian herbivores digesting cellulose?

Explain why the mammalian lineage,alive and well during the "reign of the dinosaurs," may have been evolutionarily "depressed" in the ecological sense of the word.

A duckbilled platypus is an exception to many mammals because it

Compare the morphology and likely physiology of pelycosaurs and therapsids.

Discuss the importance of NOT over-harvesting wild stocks of animals.What might happen,especially if the world's predatory species decline precipitously because of over-harvesting?

Discuss the significance of the evolution of a true placenta.Why would this have been an evolutionary milestone?

True horns are

Discuss the recent fossil evidence on the origin of whales.What evidence suggests that they are the sister group to the hippopotamus?

Egg-laying mammals,such as the duck-billed platypus,are collectively called ___________.

Typically,mammals produce two sets of teeth during their lifespan,a kind of dentition called ___________.

The secretion that serves as a dressing for the skin and hair is produced by the ______ ______.

Place Paranthropus robustus,Ardipithecus ramidus,Sahelanthropus tchadensis,Australopithecus anamensis,Australopithecus africanus,Australopithecus afarensis,Homo erectus,Homo habilis,and Homo sapiens in a general phylogeny.Where do the Neanderthals fit into this scheme,and why?

The barren-ground _____ undergo annual migrations from winter ranges on the tundra to summer ranges in the boreal forest.

Hares,rabbits,and some rodents pass food through their digestive tract twice because

Which is missing from this list: incisors,molars,canines and ___________?

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Hexapods

Chaetognaths, echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

Filters

The secretion that serves as a dressing for the skin and hair is produced by the .