Which of the following risks is the least likely to affect an individual who has been smoking for only a few months?
a.
lung cancer
b.
shortness of breath
c.
yellowing teeth
d.
reduced sense of smell

Which action occurs in the third stage of cell division? a. the nuclear material of cell is copied exactly. b. the nuclear membrane disappears. c. the cell forms two nuclei d. the nuclear material separates, with half moving to either side of the cell.