The correct answer is option A, that is, convergent evolution.
Explanation:
The convergent evolution in evolutionary biology refers to the phenomenon in which the organisms that are not closely associated, that is, not monophyletic, autonomously evolve identical characteristics as a consequence of having to amend to ecological niches or identical surroundings.
For example, the evolution of lungs and gills that serves similar functions in distant organisms is an illustration of convergent evolution.
The electron configuration which can be determined by the vanlency nuber/electron number because the electron configuration determines the number of electrons neede to be lost or gained which is very essential in bonding...
The cell structures that best reveal evolutionary unity is the Plasma Membrane and DNA, which are the best cellular structures to study evolutionary unity.
