Mitosis occurs in living things when a cell divides to produce two cells. Compared to the original cell, how many chromosomes are in each of the resulting cells? A. The same number
B. Twice as many
C. Half as many
D. An unpredictable number

What is thought to have caused the mass extinction at the end of the cretaceous period?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.