Which of the Following Can Be Considered Examples of Trait

question 12

Multiple Choice

Which of the following can be considered examples of trait variation being maintained by a fluctuating optimum level of a characteristic?
1) A rounder body shape is favored in cold climates,but a longer body shape is favored in hot climates
2) Rapid growth is favored if there is much vegetation,but slow growth is favored if there is little vegetation
3) A cautious style is favored if there are many predators,but a bolder style is favored if there are few predators.

• A)1 only
• B)1 and 2 only
• C)1 and 3 only
• D)2 and 3 only
• E)1,2,and 3

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Definitions:

Dependent Variable

In research, the variable that is being measured or tested to see how it is influenced by changes in another variable (the independent variable).

Correlation Coefficients

Statistical measures that describe the size and direction of a relationship between two or more variables.

Double-Blind Procedure

A research experiment in which neither the participants nor the experimenters know who is receiving a particular treatment, minimizing the risk of bias.