Jaws Appear to Have Evolved from

question 30

Multiple Choice

Jaws appear to have evolved from

• A)the fusion of many bony elements found in the skin of the neck region of jawless ancestors.
• B)skeletal rods that supported gill slits near the mouth.
• C)a large,bony shield that protruded from between the base of the pectoral fins.
• D)modification of a disk of bones surrounding the mouth in lampreys.

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Definitions:

Universalism

The ethical perspective that certain standards, values, or truths are applicable to all people, regardless of culture or individual differences.

Neuroticism

A personality trait characterized by emotional instability, anxiety, moodiness, worry, and a higher propensity for negative feelings.

Big Five

A model describing human personality in terms of five broad dimensions: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

MARS Model

A framework identifying four factors—motivation, ability, role perceptions, and situational factors—that collectively affect individual performance.