What happens to the centrioles during mitosis

During mitosis the four centrioles appear visibly and move to the ends of the nucleus one pair at each end then they produce a series of threads that attach to the chromosomes During cell division the threads split the chromosomes and drew them towards the centrioles.

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.