The ________ controls the muscles of the limbs and fingers

Marian is severely depressed and wants to commit suicide. She feels guilty about the harm she may inflict on her mother because both her father and her mother's sister committed suicide. Which of the following statements describes the influence of familial suicides on Marian's suicidal ideation?

A. Marian's desire to commit suicide is independent of any suicides in her family's past. B. Evidence points to the correlation between familial suicide and Marian's increased risk for suicide. C. Research suggests that there is no correlation between risk for suicide and history of familial suicide. D. Marian is ten times more likely to commit suicide than someone from a family with no suicides.

The ED 50 for drugs A, B, C, and D are 10 mg, 50 mg, 100 mg, and 200 mg, respectively. The LD 50 for drugs A, B, C, and D are 100 mg, 150 mg, 500 mg, and 800 mg, respectively

Assuming the lethal dose response functions for all four drugs have the same slope, in general, which drug has the greatest margin of safety? a. drug A b. drug B c. drug C d. drug D