Consider Figure B4

question 19

Multiple Choice

Consider figure b4.2. In the text Analyze this figure and select which interpretation below is consistent with the findings.

• A) Several genes in fruit flies appear to have duplicated somewhere in their ancestral lineage
• B) Nematodes express a greater variety of Hox genes than cephalochordates
• C) Each organism contains at least one of each known Hox gene, though some contain duplicates
• D) Sea urchins are round; therefore they do not require as many Hox genes to direct development

---

Definitions:

Situational Nature

The aspect of behaviors or phenomena that is influenced by external environmental or contextual factors rather than by individual traits.

Political Change

Any significant alteration in the political landscape, institutions, or power dynamics of a society, often resulting from social movements, electoral outcomes, or policy reforms.

Meta-analysis

A method of quantitative analysis that combines and synthesizes the results of multiple scientific studies on the same topic to draw broader conclusions.

Extraversion

A personality trait characterized by sociability, talkativeness, assertiveness, and high activity levels; typically associated with positive emotions and seeking out social interaction.