What is the study of living organisms called?

The study of living organisms is called biology. This field encompasses a wide range of topics related to the structure, function, growth, evolution, distribution, and taxonomy of living entities. Biology examines the interactions between organisms and their environments, including how they adapt, reproduce, and maintain homeostasis.

Choosing this answer reflects an understanding that biology is a foundational science concerned with life processes and living systems, distinguishing it clearly from other sciences. While physics deals with the properties of matter and energy, chemistry focuses on the composition and reactions of substances, and ecology, a subfield of biology, specifically studies the interactions between organisms and their environment. Thus, biology is the most comprehensive term for the study of all living organisms.