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>
An educated guess is the best way to describe hypothesis
<span>The classification of species by morphology involves "Physical structure" of the species
Hope this helps!</span>
First they don't use oxygen, plants use the CO2 in the air and release oxygen out into the air after the plant used up the CO2
