A Single Species of Fish, the Three-Spined Spinyback, Once Inhabited

question 80

Multiple Choice

A single species of fish, the three-spined spinyback, once inhabited a large lake. At some point in the lake's history, lava flowed from a nearby volcano into the lake cutting it into three completely isolated mini-lakes. Despite the heat from the lava, a few individuals from the original population of spinyback survive in each mini-lake. Three million years later, a researcher finds that each mini-lake is inhabited by its own species of spinyback. Which of the following figures MOST closely reflects how the three species of spiny back are related to one another?

• A)tree M
• B)tree H
• C)tree K
• D)tree L

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Definitions:

Thought Processes

The manner in which an individual thinks, including the logic, coherence, and relevance of their thoughts.

Mood and Affect

Terms referring to an individual's prevailing emotional state (mood) and the observable expression of emotion (affect).

Appearance and Behavior

The outward presentation of oneself combined with actions, both of which are often used to make judgments about character.

Problem Representation

The way in which a problem is conceptualized or framed, which can affect how it is understood and tackled.