In the following diagram of boiling water, what is causing the rising and sinking of the water? A electromagnetic radiation from the atmosphere
B the insulation of water due to its high heat capacity
C convection from the movement of liquids and gases
D conduction from the fire underneath the pot

B.

Explanation:

the insulation of water due to its high heat capacity

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

not sure if this is what you'r looking for eubacteria and archaebacteria