By Placing a Given Trait on a Phylogenetic Tree That

question 17

Multiple Choice

By placing a given trait on a phylogenetic tree that we have already constructed using other data,we can

• A)generate a hypothesis about when and how this trait evolved.
• B)generate a hypothesis about the evolutionary history of the species in which those traits appear.
• C)Both of the above
• D)None of the above

---

Definitions:

Functionalism

A theory in sociology and psychology focusing on the roles and purposes of societal institutions and human behaviors.

Negative Affectivity

A personality dimension involving the tendency to experience negative emotions and moods, such as sadness, anxiety, and anger, more frequently and intensely than average.

Stranger Anxiety

An infant’s fear of and wariness toward strangers; it tends to appear in the second half of the first year of life.

Unsmiling

Displaying a serious or stern expression, without smiles.