What is the purpose of monophyletic naming on a phylogenic tree?

An important goal of modern systematics is to apply scientific names only to groups of species that are monophyletic (from the Greek monos = one or single, and phylon = kind or tribe). A monophyletic group of species shares a single common ancestor and also includes all of the descendants of that common ancestor.

Explanation:

maritime tropical may be your answer.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.