DrVan Oss Is Conducting a Longitudinal Study on Lifestyle and Heart

Multiple Choice

Dr.Van Oss is conducting a longitudinal study on lifestyle and heart disease.He found that participants who smoked and had poor diets were at higher risk of developing heart disease.However,some of those at-risk participants appeared to have a genetic "immunity" to heart disease.These results demonstrate the importance of understanding ____.

A) a participant's phenotype
B) nonshared factors
C) gene-environment interactions
D) evolutionary factors