When exploring the respective influences of heredity and environment in contributing to mood disorders, many researchers compare the instances of the disorders among the biological and adoptive families of people who have bipolar disorder. What do these comparisons show?
a. The contributions of heredity and environment are relatively equal.
b. There is little observable influence from either heredity or environment.
c. The influences of environment are stronger than those of heredity.
d. The influences of heredity are stronger than those of environment.
Question 2
Research by Powell, Calvin, and Calvin (2007) found that the most effective long-term method for treating obesity and sustaining weight loss is ____.
a. dieting
b. lifestyle interventions
c. drug treatments
d. surgery
Environmental influences on the expression of PKU within a single family
There are multiple pathways for heat exchange between organisms and the environment.
Adaptations to the Environment
Influences on Temperature: Altitude and Elevation
Environmental Influences on Personality
The Effect of Multiple Contributing Genes on Phenotypic Variation