Answer:
I believe the answer is B.
Explanation:
Hope my answer has helped you and if not i am sorry.
0K
explanation:
0 kelvin (273 degrees celsius)
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
They might be going through the S Phase of the cell cycle which is DNA replication. Usually, when the cells go through this phase they end up to dividing.