What does physiology study?

What does physiology study?

• A. Characteristics of a living organism's functions and activities
• B. Genetic material
• C. External appearance
• D. Evolution

Answer: (A)

Physiology is the study of how living bodies function—the processes and mechanisms that keep organisms alive and working. It examines how systems operate and interact to sustain life, from how the heart pumps blood and lungs exchange gases to how kidneys regulate fluids and how nerves and hormones coordinate activities. It also covers cellular communication, energy production and use, and how the body maintains stability through homeostasis. This functional focus sets physiology apart from genetics (the study of genetic material), morphology (external appearance), and evolution (changes in traits over generations).

Physiology is the study of how living bodies function—the processes and mechanisms that keep organisms alive and working. It examines how systems operate and interact to sustain life, from how the heart pumps blood and lungs exchange gases to how kidneys regulate fluids and how nerves and hormones coordinate activities. It also covers cellular communication, energy production and use, and how the body maintains stability through homeostasis. This functional focus sets physiology apart from genetics (the study of genetic material), morphology (external appearance), and evolution (changes in traits over generations).