Three of the major characteristics used to classify organisms are cell structure, mode of nutrition and cellularity. These characteristics help scientists determine how organisms are similar to each other as well as how they are different from each other.
Mitosis ends with 2 identical cells, each with 2N chromosomes and 2X DNA content. All eukaryotic cells replicate with mitosis-except germline cells that undergo meiosis to produce gametes (eggs and sperm)).
Change in the external Environment may resulted in the changing in the population of beetles.
