During mitosis the four centrioles appear visibly and move to the ends of the nucleus one pair at each end<span> 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</span>
I think the correct answer from the choices listed above is option A. Directional selection can be distinguished from disruptive selection by the elimination of extreme variations of traits. Directional selection is a natural selection where an extreme phenotype is favored than others.
Earths lithospere is solid and sits on top of the softer asthenosphere.
Option A - gyres is the correct answer.
anxiety is just when you're over stressed , you get stressed over things. you can sweat , bleed , harm yourself and even make an effect in you're mental health.