Rates of smoking are particularly high among adolescents in

When conducting research with Alzheimer's disease caregivers, why is it necessary to have an

"illness control group"? A) To determine if your sample is demographically representative of caregivers in general. B) To ensure the patients really have Alzheimer's disease. C) To see if there is something uniquely stressful about caring for these particular clients or patients. D) All of the above.

The process of __________ occurs when chromosomes duplicate themselves and the cell divides into two new cells

a) meiosis b) mitosis c) crossing over d) cellularization