The term BIOLOGIST'S FOCUS can be summarized as the study of living organisms and their environment. A biologist's focus is on understanding the structure, function, growth, origin, evolution, and distribution of living organisms. The crossword solution for this term is SPECIMEN, which refers to an individual or sample of a species or organism that is studied by a biologist. Specimens are used to observe and analyze the characteristics of a species or organism in order to gain a better understanding of its behavior and biology.