Question 1

The heartbeat rate is controlled by the cardiac center located in the

Accepted Answer

A) cerebellum. 
B) medulla. 
C) cerebrum. 
D) midbrain. 
E) heart wall. 
A) cerebellum. 
B) medulla. 
C) cerebrum. 
D) midbrain. 
E) heart wall.

Question 2

The systemic circuit ultimately circulates blood from the

Accepted Answer

A) right ventricle to left atrium. 
B) left ventricle to left atrium. 
C) right ventricle to right atrium. 
D) left ventricle to right atrium. 
E) pulmonary artery to the lungs. 
A) right ventricle to left atrium. 
B) left ventricle to left atrium. 
C) right ventricle to right atrium. 
D) left ventricle to right atrium. 
E) pulmonary artery to the lungs.

Question 3

The pulmonary semilunar valves prevent the backflow of blood into the

Accepted Answer

A) right atrium. 
B) left atrium. 
C) ventricles. 
D) aortic arch. 
E) pulmonary trunk. 
A) right atrium. 
B) left atrium. 
C) ventricles. 
D) aortic arch. 
E) pulmonary trunk.

Question 4

Outline the functions of the lymphatic system.

Accepted Answer

The lymphatic system is a crucial part o

Question 5

Is the completely separate double circulation of a mammal really superior to that of the incompletely separate circulation of amphibians? Explain your reasoning.

Accepted Answer

The completely separate double circulati

Question 6

What would happen to the breathing rate of a mammal that is masked?

Accepted Answer

A) Its breathing rate would increase in response to more carbon dioxide. 
B) Its breathing rate would increase in response to less oxygen in the blood. 
C) Its breathing rate would slow down as it suffocated. 
D) It is not possible to predict since breathing rate is controlled consciously in mammals. 
E) None of the choices is correct 
A) Its breathing rate would increase in response to more carbon dioxide. 
B) Its breathing rate would increase in response to less oxygen in the blood. 
C) Its breathing rate would slow down as it suffocated. 
D) It is not possible to predict since breathing rate is controlled consciously in mammals. 
E) None of the choices is correct

Question 7

The exchange of nutrients,oxygen,and wastes (including carbon dioxide)takes place across the walls of the

Accepted Answer

A) lymph vessels. 
B) arteries. 
C) capillaries. 
D) veins. 
E) lymphatic vessels. 
A) lymph vessels. 
B) arteries. 
C) capillaries. 
D) veins. 
E) lymphatic vessels.

Question 8

About two-thirds of waste carbon dioxide is carried back to the lungs in higher animals by which method given below?

Accepted Answer

A) By red blood cells on the empty hemes 
B) Dissolved in blood plasma as bicarbonate and hydrogen ions 
C) Dissolved in lymph in lymph ducts 
D) On myoglobins 
E) None of the choices is correct 
A) By red blood cells on the empty hemes 
B) Dissolved in blood plasma as bicarbonate and hydrogen ions 
C) Dissolved in lymph in lymph ducts 
D) On myoglobins 
E) None of the choices is correct

Question 9

Compare and contrast the internal fluid components within a vertebrate organism.

Accepted Answer

The internal fluid components within a v

Question 10

____________ carry blood away from the heart.

Accepted Answer

A) Capillaries 
B) Venules 
C) Veins 
D) Arteries 
E) Lymph vessels 
A) Capillaries 
B) Venules 
C) Veins 
D) Arteries 
E) Lymph vessels

Exam 31: Homeostasis: Internal Fluids and Respiration

The heartbeat rate is controlled by the cardiac center located in the

The systemic circuit ultimately circulates blood from the

The pulmonary semilunar valves prevent the backflow of blood into the

Outline the functions of the lymphatic system.

Is the completely separate double circulation of a mammal really superior to that of the incompletely separate circulation of amphibians? Explain your reasoning.

What would happen to the breathing rate of a mammal that is masked?

The exchange of nutrients,oxygen,and wastes (including carbon dioxide)takes place across the walls of the

About two-thirds of waste carbon dioxide is carried back to the lungs in higher animals by which method given below?

Compare and contrast the internal fluid components within a vertebrate organism.

____________ carry blood away from the heart.

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

Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

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