populations were prevented from interbreeding by geographic isolation
Tissues and organ systems.
here is the full chart:
cell --> tissue --> organ --> organ system --> organism
(think: group of [insert former here])
e.g. tissue=group of same cells
(et.al)
If not my mistaken this would be the answer
The cell will change the concentration of water within the cell to match the concentration of water outside the cell.
True because since there are not many ways for them to erode they can thrive
