[填空题]Knowledge of microscopic anatomy was greatly expanded during the 20th century as a result of the development of microscopes that provided much greater resolution, arid magnification than had conventional instruments, thus revealing formerly unclear or ______ detail.(visible)

[填空题]Knowledge of microscopic anatomy was greatly expanded during the 20th century as a result of the development of microscopes that provided much greater resolution and magnification than had conventional instruments, thus revealing formerly unclear or ______ detail. (visible)

[单项选择]Anatomy 1. The term anatomy comes from Greek anatomy, "dissection". It is a branch of natural science dealing with the structural organization of living things. The proper understanding of structure, however, implies a knowledge of function in the living organism. Anatomy is therefore almost inseparable from physiology, which is sometimes called functional anatomy. 2. It is convenient to subdivide the study of anatomy in several different ways. One classification is based on the type of organisms studied, the major subdivisions being plant anatomy and animal anatomy. Animal anatomy is further subdivided into human anatomy and comparative anatomy, which seeks out similarities and differences among animal types. Anatomy can also be subdivided into biological processes, for example, developmental anatomy, the study of embryos, and pathological anatomy, the study of diseased organs. 3. The oldest known systematic study of anatomy is contained in an Egyptian papyrus dating from about