Darwin Observed That Bipedalism Frees the Hand to Hold Objects

question 26

Multiple Choice

Darwin observed that bipedalism frees the hand to hold objects.This led him to hypothesize that ________ was an important selective pressure on bipedalism.

• A)dental development
• B)skeletal structure of the hand
• C)tool use
• D)human vision

---

Definitions:

Vicarious Learning

Learning that occurs by observing the actions, outcomes, and consequences of others rather than by direct experience.

Brand Loyalty

The tendency of consumers to continuously purchase one brand's products over others due to satisfaction, trust, or emotional connection.

Classical Conditioning

A training method where a response initially triggered by a second stimulus becomes associated with a first stimulus, following their repeated pairing.

Instrumental Conditioning

A learning process in which behavior is modified by the consequences of the behavior; also known as operant conditioning.