Question 1

All mammals share the following characteristic(s):

Accepted Answer

A)  Hair 
B)  Mammary glands 
C)  A diaphragm 
D)  Middle ear bones 
E)  All of the choices are correct 
A)  Hair 
B)  Mammary glands 
C)  A diaphragm 
D)  Middle ear bones 
E)  All of the choices are correct

Question 2

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 3

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 4

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 5

Mammals have a variety of teeth specialized for different functions,a pattern called

Accepted Answer

A)  Heterodont. 
B)  Diphyodont. 
C)  Homodont. 
D)  Multi-cuspid. 
E)  Ambidontous. 
A)  Heterodont. 
B)  Diphyodont. 
C)  Homodont. 
D)  Multi-cuspid. 
E)  Ambidontous.

Question 6

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 7

Discuss a possible scenario of early mammal evolution that would have favored the evolution of hair and endothermy.

Accepted Answer

One possible scenario for the evolution

Question 8

Mammals belong to an amniote lineage,the __________,characterized by a skull having a single pair of lateral openings in the skull roof.
or
Synapsida

Accepted Answer

The answer of Mammals belong to an amniote lineage,the __________,characterized...

Question 9

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 10

The mammal that makes one of the longest migrations to breeding areas in the Pribilof Islands is the

Accepted Answer

A)  barren-ground caribou. 
B)  northern fur seal. 
C)  humpback whale. 
D)  sperm whale. 
E)  lemming. 
A)  barren-ground caribou. 
B)  northern fur seal. 
C)  humpback whale. 
D)  sperm whale. 
E)  lemming.

Question 11

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 12

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 13

Examples of density-dependent and density-independent factors that affect mammal populations would be,respectively,

Accepted Answer

A)  fires and hurricanes. 
B)  disease and fires. 
C)  fires and disease. 
D)  food supply and disease. 
E)  disease and food supply. 
A)  fires and hurricanes. 
B)  disease and fires. 
C)  fires and disease. 
D)  food supply and disease. 
E)  disease and food supply.

Question 14

Mammals belong to the

Accepted Answer

A)  anapsid lineage. 
B)  synapsid lineage. 
C)  diapsid lineage. 
D)  polydont lineage. 
E)  dinosaur lineage. 
A)  anapsid lineage. 
B)  synapsid lineage. 
C)  diapsid lineage. 
D)  polydont lineage. 
E)  dinosaur lineage.

Question 15

The North American mammal that shows 10-year cycles in population density,and that is preyed upon by lynx and other predators,is the ______ ______.

Accepted Answer

The answer of The North American mammal that shows 10-year...

Question 16

The specialized hairs on the nose that are tactile in function (used to "measure" width of passageways,etc.)are

Accepted Answer

A)  guard hairs. 
B)  underfur. 
C)  vibrissae. 
D)  quills. 
E)  filamentous hairs. 
A)  guard hairs. 
B)  underfur. 
C)  vibrissae. 
D)  quills. 
E)  filamentous hairs.

Question 17

Discuss the significance of the evolution of echolocation in bats.Could that partially explain why bats are the most diverse group of mammals today?

Accepted Answer

The evolution of echolocation in bats ha

Question 18

Discuss the vascularization of the gills of fish.Is this homologous or analogous to the vascularization of mammalian lungs?

Accepted Answer

The vascularization of the gills of fish

Question 19

Discuss the relationship between mammalian size and the amount of energy intake needed.

Accepted Answer

The relationship between mammalian size

Question 20

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...

Exam 28: Mammals

All mammals share the following characteristic(s):

A duckbilled platypus is an exception to many mammals because it

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

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

Mammals have a variety of teeth specialized for different functions,a pattern called

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 a possible scenario of early mammal evolution that would have favored the evolution of hair and endothermy.

Mammals belong to an amniote lineage,the __________,characterized by a skull having a single pair of lateral openings in the skull roof. or Synapsida

The growth of antlers causes an animal to

The mammal that makes one of the longest migrations to breeding areas in the Pribilof Islands is the

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

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

Examples of density-dependent and density-independent factors that affect mammal populations would be,respectively,

Mammals belong to the

The North American mammal that shows 10-year cycles in population density,and that is preyed upon by lynx and other predators,is the ______ ______.

The specialized hairs on the nose that are tactile in function (used to "measure" width of passageways,etc.)are

Discuss the significance of the evolution of echolocation in bats.Could that partially explain why bats are the most diverse group of mammals today?

Discuss the vascularization of the gills of fish.Is this homologous or analogous to the vascularization of mammalian lungs?

Discuss the relationship between mammalian size and the amount of energy intake needed.

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

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

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

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 Distributions

Animal Ecology

Filters

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

The North American mammal that shows 10-year cycles in population density,and that is preyed upon by lynx and other predators,is the .