Answer:
Step-by-step explanation:
The most significant characteristics (attributes) of a taxon in biological systematics are considered [23] diagnosis, rank and volume. As the classification changes, the characteristics of taxa may change (in different systems, for example, taxa of the same size may have different diagnoses, or different ranks, or occupy a different place in the system) [24].
When identifying taxa, it is often recommended, in addition to the principle of exclusion of polyphily, to follow the principle of optimal diagnosability (which is taken into account when determining the volume and boundaries of each taxon) and the principle of unity of the level of diversity and isolation of taxa of the same rank. In practice, these two principles are not always observed.