Spiral Structure

question 47

Multiple Choice

Spiral structure:

• A) rotates at the same speed as the gas in the disk
• B) rotates at a speed that is different than the gas in the disk
• C) stays constant in time as the gas in disk rotates through it
• D) rotates backward compared to the stellar orbits
• E) must only last a short time, since few galaxies with disks show spiral patterns

Analyze the impact of policies and social practices on genetic outcomes and population demographics, including unintended consequences.

Understand the basics of human genetics, including the structure and function of chromosomes.

Identify the genetic basis of sex determination.

Define and differentiate between genotype and phenotype.

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Definitions:

Pre-existing Duty

A rule in contract law that states if someone is already legally obligated to perform a certain duty, promising to perform that same duty does not constitute a valid consideration for a new contract.

Employer

A person or organization that hires people to work for wages or salary.

Endangerment

The act of putting someone or something at risk or in danger of being harmed or destroyed.

Laws

Rules and guidelines, established by a community or authority, governing behavior.