Which factor is most likely responsible for the uncertainty in the forecast?
A uncertainty about the mechanisms of the greenhouse effect
O
B. uncertainty about the rate of sediment build-up on the ocean floor
O
C. unpredictability of volcanic eruptions
©
D. future human decisions about energy use and reforestation

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?