What is the correct combining form for the study of life?

The correct combining form for the study of life is "Bio." This term is derived from the Greek word "bios," which means life. In medical terminology, "bio" is frequently used as a prefix in various terms related to life processes and biological sciences. For example, "biology" refers to the study of living organisms, and "biopsy" refers to the examination of living tissue. Understanding this root word is critical in the healthcare field, as it connects various concepts to living systems and biological functions.

In contrast, "Derm" pertains to the skin, "Cardio" relates to the heart, and "Hemo" is associated with blood. While these terms are also important in medical terminology, they focus on specific body systems and functions rather than the broader concept of life itself.