I believe that D is the answer to your question, even though this is a complicated one.
Answer:
1:C; 2:A; 3:B; 4:A; 5:C is the right answer.
Explanation:
1) rotenone
------------------C) complex I
2) CO
-------------------------A) complex IV
3) antimycin
-----------------B) complex III
4) cyanide
------------------A) complex IV
5) amytal
---------------------C) complex I
Answer:
A polar molecule is a molecule that has a positive and negative charge at either end.
the answer is C, the division of one cell into two identical cells :3