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