Taxonomy is the type of classification that names and identifies different organisms primarily by their

Taxonomy in biology is the process of placing organisms into similar groups based on certain criteria. Natural scientists use a taxonomy key to identify plants, animals, snakes, fish and minerals by their scientific names.

Explanation:

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.