The Widowhood Effect Refers to the Finding That Individuals Whose

question 27

Multiple Choice

The widowhood effect refers to the finding that individuals whose spouses die, compared to those still married, have higher:

• A) involvement in their communities.
• B) percentages of "good" cholesterol.
• C) rates of dying from all causes.
• D) ratings of relationships with children.

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Definitions:

Narrow Sense Heritability

The proportion of phenotypic variance that can be attributed to additive genetic variance, important in the prediction of response to selection.

Body Height

A measurement of an individual from the bottom of the feet to the top of the head when standing upright.

Phenotypic Plasticity

The capacity of an organism to alter its physical appearance or characteristics when the environment changes.

Reaction Norms

Patterns of phenotypic expression of a genotype across a range of environmental conditions, illustrating the plasticity of an organism's traits.