The answer is C.
Monogamy: when one male breeds with only one female for life.
polygyny: where one male mates with multiple females.
A B/c inside the cell is most similar to the digestive system
Explanation:
diffusion is movement of molecules from a region of higher concentration to a region of lower concentration
2a)molecules will be moving out of the cell
b)molecules will be moving into the cell
3i)molecules will be moving into the cell
ii)molecules will be moving out of the cell
iii)there is no movement since concentration is equal inside and outside the cell