Definition: "Biological" is a noun that describes something or someone who possesses traits or characteristics that are specific to organisms, such as reproduction, growth, metabolism, behavior, and adaptation. It refers to a group of organisms which includes living things such as plants, animals, fungi, bacteria, viruses, protozoa and some microorganisms. In biology, the word "biological" is used to describe organisms that reproduce or grow in a way that enables them to survive and adapt to their environment. These organisms have traits that allow them to perform specific functions such as photosynthesis, reproduction, growth, migration, digestion, immune systems, etc. In other words, "biological" refers to those organisms with specialized mechanisms for survival and adaptation. In addition, the word "biology" is a noun used in natural science to describe the study of life forms in general, including their structure, function, evolution, and interactions with one another. The word "biologist," on the other hand, is used to refer to a scientist who studies life as an organism or group of organisms. In summary, the word "biology" refers to the scientific investigation of living organisms, while "biological" refers to specific traits and mechanisms that enable organisms to survive and adapt.