((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
1. Animal Control Animal control and responses describe how animals detect changes in their
and Responses environment and respond to them. This includes the roles of the nervous and
endocrine systems in coordinating movement, behavior, and internal processes.
2. Animal Nervous The animal nervous and endocrine systems are two major control systems that
and Endocrine regulate internal activities and responses to the environment. The nervous system
Systems uses electrical signals for fast, localized communication, while the endocrine
system releases hormones into the bloodstream to transmit signals more slowly
but over longer durations and distances.
3. Animal En- Animal endocrine glands are organs that release hormones directly into the
docrine Glands bloodstream. These glands, such as the pituitary, thyroid, and adrenal glands,
help regulate activities like growth, metabolism, and reproduction by controlling
the release of specific hormones.
4. Animal Hor- Animal hormones can be classified based on their chemical structure, such as
mone Classifica- peptides, steroids, or amines. Their production, release, and action are tightly
tion and Regula- regulated by feedback mechanisms, ensuring proper balance of physiological
tion processes within the body.
5. Hypothalamus-Pi- The hypothalamus-pituitary axis is the system connecting the hypothalamus and
tuitary Axis the pituitary gland. It regulates the release of hormones that control growth,
stress, reproduction, and metabolism in animals.
6. Negative Feed- A negative feedback loop is a control process where a change in a system triggers
back Loop a response that counters the initial change, helping maintain homeostasis. For
example, high blood sugar stimulates the release of insulin, which lowers blood
sugar levels.
7. Neurosecretory Neurosecretory cells are specialized nerve cells that produce and release hor-
Cells mones into the bloodstream, translating neural signals into hormonal responses.
8.
Page 1 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
Structure and The animal nervous system is made up of specialized cells called neurons, which
Function of Ani- form networks that transmit electrical and chemical signals. Its main function is to
mal Nervous Sys- detect changes in the environment, process information, and coordinate appro-
tem priate responses, enabling animals to interact effectively with their surroundings.
9. Neuron A neuron is a specialized cell in the animal nervous system that transmits infor-
mation using electrical and chemical signals.
10. Resting Potential Resting potential is the electrical charge difference across a neuron's membrane
when it is not transmitting a signal.
11. Animal Form and Animal Form and Structure refer to the physical shape, arrangement, and orga-
Structure nization of an animal's body and its parts. It includes the study of tissues, organs,
and body systems that make up the animal.
12. Animal Tissues Animal tissues are groups of similar cells that work together to perform specific
functions in the body. The four main types are epithelial, connective, muscle, and
nervous tissues.
13. Blood Blood is a fluid connective tissue composed of cells and plasma. It circulates
throughout the body, transporting oxygen, nutrients, wastes, and hormones, and
supports immune responses.
14. Nervous Tissue Nervous tissue is made up of neurons and supporting cells. It transmits electrical
signals throughout the body, allowing for communication, coordination, and
control of body functions.
15. Aquatic Structur- Aquatic structural and physiological adaptations are features and mechanisms
al and Physiolog- that allow animals to live and function effectively in water environments. These
ical Adaptations include streamlined bodies, gills for breathing, and systems for regulating salt
and water balance.
16. Salt Balance
Page 2 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
Salt balance is the regulation of salt concentrations in an aquatic animal’s body,
essential for maintaining cellular function and survival in varying aquatic environ-
ments.
17. Respiratory Respiratory adaptations include changes in the structure or function of the respi-
Adaptations ratory system that enable animals to breathe efficiently in air. These adaptations
are essential for life on land.
18. Vision Vision is the ability to detect and interpret light, allowing animals to see and
navigate their surroundings.
19. Animal Physiolo- Animal physiology and internal regulation involves the processes and mecha-
gy and Internal nisms by which animals perform their vital functions, such as circulation, diges-
Regulation tion, and breathing, and maintain stable internal conditions (homeostasis).
20. Animal Circula- Animal circulation and transport describe the systems and mechanisms that move
tion and Trans- blood, nutrients, gases, hormones, and waste products throughout an animal’s
port body, ensuring that cells receive what they need to function and maintain home-
ostasis.
21. Circulatory Sys- Circulatory system types refer to the different ways animals transport fluids
tem Types and through their bodies, such as open and closed systems. Open circulatory systems
Components use hemolymph that bathes organs directly in body cavities, while closed circula-
tory systems circulate blood through a continuous system of vessels. Components
of these systems include the heart, blood or hemolymph, vessels, and sometimes
specialized organs for filtration or gas exchange.
22. Heart The heart is a muscular organ that pumps blood or hemolymph throughout the
circulatory system to supply tissues with nutrients and oxygen.
23. Open Circulatory An open circulatory system is a type of circulatory system in which the fluid, called
System hemolymph, is not entirely contained within vessels but flows freely through body
cavities, bathing the organs directly.
Page 3 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
24. Diffusion Diffusion is the passive movement of molecules from an area of higher to lower
concentration, enabling gases like oxygen and carbon dioxide to move across
respiratory surfaces.
25. Hemoglobin Hemoglobin is an iron-containing protein within red blood cells that binds and
transports most of the oxygen in the blood of many animals.
26. Oxygen Trans- Oxygen transport is the process by which oxygen is carried from the respiratory
port organs to body tissues, primarily through the blood using respiratory pigments
such as hemoglobin or hemocyanin.
27. Specialized Di- Specialized digestive adaptations are unique features or changes in an animal’s
gestive Adapta- digestive system, such as enlarged stomachs, extra chambers, or specialized
tions and Regula- enzymes, that help them process certain foods more efficiently. Regulation refers
tion to the control of digestive processes through hormones, nerves, or other internal
mechanisms that match food intake and digestion with the animal’s needs.
28. Intestinal Ab- Intestinal absorption is the process by which digested nutrients pass through
sorption the walls of the small intestine into the blood or lymph, allowing distribution
throughout the body.
29. Animal Metabo- Animal metabolism and thermoregulation refer to the chemical processes that
lism and Ther- maintain life and the mechanisms animals use to regulate their body temperature.
moregulation This field examines how animals produce and use energy and how they maintain
a stable internal temperature.
30. Aerobic Metabo- Aerobic metabolism is the process by which cells produce energy using oxygen
lism to convert nutrients into ATP, with carbon dioxide and water as byproducts.
31. Basal Metabolic Basal Metabolic Rate (BMR) is the minimum rate of energy use per unit time by
Rate an endothermic animal at rest, in a thermoneutral environment, and a post-ab-
sorptive state.
Page 4 of 33 3/31/2026
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
1. Animal Control Animal control and responses describe how animals detect changes in their
and Responses environment and respond to them. This includes the roles of the nervous and
endocrine systems in coordinating movement, behavior, and internal processes.
2. Animal Nervous The animal nervous and endocrine systems are two major control systems that
and Endocrine regulate internal activities and responses to the environment. The nervous system
Systems uses electrical signals for fast, localized communication, while the endocrine
system releases hormones into the bloodstream to transmit signals more slowly
but over longer durations and distances.
3. Animal En- Animal endocrine glands are organs that release hormones directly into the
docrine Glands bloodstream. These glands, such as the pituitary, thyroid, and adrenal glands,
help regulate activities like growth, metabolism, and reproduction by controlling
the release of specific hormones.
4. Animal Hor- Animal hormones can be classified based on their chemical structure, such as
mone Classifica- peptides, steroids, or amines. Their production, release, and action are tightly
tion and Regula- regulated by feedback mechanisms, ensuring proper balance of physiological
tion processes within the body.
5. Hypothalamus-Pi- The hypothalamus-pituitary axis is the system connecting the hypothalamus and
tuitary Axis the pituitary gland. It regulates the release of hormones that control growth,
stress, reproduction, and metabolism in animals.
6. Negative Feed- A negative feedback loop is a control process where a change in a system triggers
back Loop a response that counters the initial change, helping maintain homeostasis. For
example, high blood sugar stimulates the release of insulin, which lowers blood
sugar levels.
7. Neurosecretory Neurosecretory cells are specialized nerve cells that produce and release hor-
Cells mones into the bloodstream, translating neural signals into hormonal responses.
8.
Page 1 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
Structure and The animal nervous system is made up of specialized cells called neurons, which
Function of Ani- form networks that transmit electrical and chemical signals. Its main function is to
mal Nervous Sys- detect changes in the environment, process information, and coordinate appro-
tem priate responses, enabling animals to interact effectively with their surroundings.
9. Neuron A neuron is a specialized cell in the animal nervous system that transmits infor-
mation using electrical and chemical signals.
10. Resting Potential Resting potential is the electrical charge difference across a neuron's membrane
when it is not transmitting a signal.
11. Animal Form and Animal Form and Structure refer to the physical shape, arrangement, and orga-
Structure nization of an animal's body and its parts. It includes the study of tissues, organs,
and body systems that make up the animal.
12. Animal Tissues Animal tissues are groups of similar cells that work together to perform specific
functions in the body. The four main types are epithelial, connective, muscle, and
nervous tissues.
13. Blood Blood is a fluid connective tissue composed of cells and plasma. It circulates
throughout the body, transporting oxygen, nutrients, wastes, and hormones, and
supports immune responses.
14. Nervous Tissue Nervous tissue is made up of neurons and supporting cells. It transmits electrical
signals throughout the body, allowing for communication, coordination, and
control of body functions.
15. Aquatic Structur- Aquatic structural and physiological adaptations are features and mechanisms
al and Physiolog- that allow animals to live and function effectively in water environments. These
ical Adaptations include streamlined bodies, gills for breathing, and systems for regulating salt
and water balance.
16. Salt Balance
Page 2 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
Salt balance is the regulation of salt concentrations in an aquatic animal’s body,
essential for maintaining cellular function and survival in varying aquatic environ-
ments.
17. Respiratory Respiratory adaptations include changes in the structure or function of the respi-
Adaptations ratory system that enable animals to breathe efficiently in air. These adaptations
are essential for life on land.
18. Vision Vision is the ability to detect and interpret light, allowing animals to see and
navigate their surroundings.
19. Animal Physiolo- Animal physiology and internal regulation involves the processes and mecha-
gy and Internal nisms by which animals perform their vital functions, such as circulation, diges-
Regulation tion, and breathing, and maintain stable internal conditions (homeostasis).
20. Animal Circula- Animal circulation and transport describe the systems and mechanisms that move
tion and Trans- blood, nutrients, gases, hormones, and waste products throughout an animal’s
port body, ensuring that cells receive what they need to function and maintain home-
ostasis.
21. Circulatory Sys- Circulatory system types refer to the different ways animals transport fluids
tem Types and through their bodies, such as open and closed systems. Open circulatory systems
Components use hemolymph that bathes organs directly in body cavities, while closed circula-
tory systems circulate blood through a continuous system of vessels. Components
of these systems include the heart, blood or hemolymph, vessels, and sometimes
specialized organs for filtration or gas exchange.
22. Heart The heart is a muscular organ that pumps blood or hemolymph throughout the
circulatory system to supply tissues with nutrients and oxygen.
23. Open Circulatory An open circulatory system is a type of circulatory system in which the fluid, called
System hemolymph, is not entirely contained within vessels but flows freely through body
cavities, bathing the organs directly.
Page 3 of 33 3/31/2026
, ((Comparative Animal Physiology Final Exam:: 2026- 2027.))
Comparative Animal Physiology Final Exam, Key Concepts
Study online at https://quizlet.com/_igeoap
24. Diffusion Diffusion is the passive movement of molecules from an area of higher to lower
concentration, enabling gases like oxygen and carbon dioxide to move across
respiratory surfaces.
25. Hemoglobin Hemoglobin is an iron-containing protein within red blood cells that binds and
transports most of the oxygen in the blood of many animals.
26. Oxygen Trans- Oxygen transport is the process by which oxygen is carried from the respiratory
port organs to body tissues, primarily through the blood using respiratory pigments
such as hemoglobin or hemocyanin.
27. Specialized Di- Specialized digestive adaptations are unique features or changes in an animal’s
gestive Adapta- digestive system, such as enlarged stomachs, extra chambers, or specialized
tions and Regula- enzymes, that help them process certain foods more efficiently. Regulation refers
tion to the control of digestive processes through hormones, nerves, or other internal
mechanisms that match food intake and digestion with the animal’s needs.
28. Intestinal Ab- Intestinal absorption is the process by which digested nutrients pass through
sorption the walls of the small intestine into the blood or lymph, allowing distribution
throughout the body.
29. Animal Metabo- Animal metabolism and thermoregulation refer to the chemical processes that
lism and Ther- maintain life and the mechanisms animals use to regulate their body temperature.
moregulation This field examines how animals produce and use energy and how they maintain
a stable internal temperature.
30. Aerobic Metabo- Aerobic metabolism is the process by which cells produce energy using oxygen
lism to convert nutrients into ATP, with carbon dioxide and water as byproducts.
31. Basal Metabolic Basal Metabolic Rate (BMR) is the minimum rate of energy use per unit time by
Rate an endothermic animal at rest, in a thermoneutral environment, and a post-ab-
sorptive state.
Page 4 of 33 3/31/2026
