WHOLE CHARACTER
科kē
a family; a class in plant and animal classification; a department; a section; a subject; a field of study
科 sorts things into kinds: 科学 'science', 科目 'subject', 学科 'field of study', 科室 'department'.
ZDIC: 会意,从禾、从斗 — grain with the dipper measure.
LEFT: THE GRAIN SIDE NAMED BY ZDIC
禾hé
standing grain
Standalone meaning is kept separate from its role in other characters.
In 科: left: the grain side named by ZDIC Shown with its documented or clearly limited role.
RIGHT: 斗 (DǑU), THE DIPPER MEASURE NAMED BY ZDIC
斗dǒu, dòu
dǒu: dipper; a dry measure; dòu: to fight
A standalone character (dǒu, dipper; dòu, fight); characters keeping its shape state the role on their own pages.
In 科: right: 斗 (dǒu), the dipper measure named by ZDIC The measuring dipper; its standalone readings dǒu, dòu are kept separate.