Which Parameter Is Now Thought to Be Vital in the Evolution

question 36

Multiple Choice

Which parameter is now thought to be vital in the evolution of a pregalactic gas cloud into an elliptical rather than a spiral galaxy?

• A) The presence of other evolving galaxies nearby
• B) The initial rate of star birth
• C) The presence of supernova explosions to trigger star birth within the galactic cloud
• D) The presence of a black hole around which the galaxy can form

---

Definitions:

Evoked Set

The group of brands or products an individual considers as options in a purchase decision.

Inept Set

A group of products or brands a consumer is aware of but deliberately chooses to avoid.

Heuristic

A problem-solving strategy that employs a practical approach or shortcut, which is not guaranteed to be perfect, but sufficient for reaching an immediate goal.

Search Activity

The process of looking for or exploring information, products, or services, motivated by various needs or goals.