Which of the following fields of biology is directly related to classification systems?

Correct answer: Taxonomy

Correct answer: B, Taxonomy. Taxonomy is the branch of biology concerned with identifying, naming, and classifying organisms. First, scientists observe similarities and differences among organisms. Next, they identify an organism and place it in suitable groups, such as genus and family. Finally, standard names help scientists communicate about the same organism throughout the world. A, Physiology, studies how body parts and organs function; it does not primarily arrange organisms into groups. C, Ecology, studies relationships between organisms and their environment. D, Genetics, studies heredity and variation. These subjects may support classification, but taxonomy is directly responsible for classification systems. Memory cue: “Taxonomy = taxa (groups) + naming and identification.”