If the Spiral Density Wave Were the Only Thing Producing

question 38

Multiple Choice

If the spiral density wave were the only thing producing spiral arms,it would be expected that

• A) all spiral arms would be dust free.
• B) all galaxies would have grand design spiral patterns.
• C) the Milky Way would be more massive than observed.
• D) the Milky Way wouldn't have any spiral arms.
• E) the halo component of the Milky way would show spiral arms as well.

---

Definitions:

Organisms

Living entities that can carry out life processes independently, including plants, animals, fungi, bacteria, and archaea.

Uniform Dispersion

A distribution pattern within a population where each individual is evenly spaced throughout their habitat.

Territoriality

The behavioral pattern of animals or humans to defend a geographical area, often against others of the same species, to mark or maintain control over resources and reproduction.

Toxic Substances

Materials or compounds that can cause harm to living organisms when introduced into the body or environment.