A Proficient Engineer Can Easily Design Skeletal Structures That Are

question 47

Multiple Choice

A proficient engineer can easily design skeletal structures that are more functional than those currently found in the forelimbs of such diverse mammals as horses, whales, and bats. Which of the following statements best explains why the actual forelimbs of these mammals do not seem to be optimally arranged?

• A) Natural selection has not had sufficient time to create the optimal design in each case, but will do so given enough time.
• B) In many cases, phenotype is determined by genotype and the environment.
• C) Although we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design.
• D) Natural selection is generally limited to modifying structures that were present in previous generations and in previous species.

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Definitions:

Controversial

Pertaining to or subject to dispute or disagreement, often generating extensive public debate and differing opinions.

Bulimia Nervosa

Eating disorder in which an individual (typically female) consistently follows a binge-and-purge eating pattern.

Perfectionism

The tendency to demand of others or oneself an extremely high or even flawless level of performance, in excess of what is required by the situation.

Self-efficacy

Refers to one's belief in their ability to succeed in specific situations or accomplish a task.