Answer:
The given blank can be filled with cladistics.
Explanation:
It is a kind of systematics formulated by the German biologist Willi Hennig to develop a more objective procedure for categorizing organisms. A method of reconstructing evolutionary trees or a method of hypothesizing associations between the organisms is termed as cladistics. The groundwork of a cladistic assessment is the information on the traits or characters of the organisms in which one is interested.
