Neonates prefer low-pitched sounds to high-pitched ones

Both of Monica's parents have been diagnosed with schizophrenia. Sam has an identical twin who has schizophrenia. Who is more likely to develop schizophrenia, and why?

A. Sam, because he is male and has a family history of schizophrenia B. Monica, because all of her genes come from her parents who have the disease C. Sam, because he has inherited the same susceptibility that his twin is expressing D. Monica, because females are more susceptible than males to the genetic forms of schizophrenia

How does physical exercise help maintain cognitive abilities in middle age?

A) Because the brain is a muscle—use it or lose it B) By decreasing low-density lipoproteins ("bad" cholesterol) C) By maintaining cardiovascular fitness D) By increasing optimism and life satisfaction