Which branch of science studies the structure and behavior of organisms?

The branch of science that studies the structure and behavior of organisms is biology. This field encompasses all living organisms, including plants, animals, fungi, and microorganisms, providing a comprehensive understanding of their anatomy, physiology, behavior, and interactions with their environments. Biology is further divided into more specific areas, such as botany, which focuses specifically on plants, and zoology, which is concerned with animals. Ecology, on the other hand, studies interactions among organisms and their environments rather than focusing solely on the organisms themselves. Therefore, biology serves as the overarching discipline that includes the study of all organisms and their many aspects.