Which Organizational Unit Includes the Fewest Species of Organisms

question 55

Multiple Choice

Which organizational unit includes the fewest species of organisms?

• A) class
• B) biosphere
• C) community
• D) population
• E) ecosystem

Identify the demographics with varying rates of polydrug use.

Recognize the impact of spinal cord and traumatic brain injuries on post-injury drug use.

Identify the risk categories for substance abuse in individuals with disabilities.

Understand the challenges in diagnosing substance abuse and addiction in persons with disabilities.

---

Definitions:

Immunization Strategies

Financial strategies used to shield a bond portfolio from the effects of interest rate fluctuations by balancing the duration of assets and liabilities.

Interest Rate Sensitivity

The degree to which the value of an investment, particularly fixed-income securities, changes in response to variations in interest rates.

Duration

A measure of the sensitivity of the price of a bond or a bond portfolio to changes in interest rates, usually expressed in years.

Interest-Rate Risk

The risk that an investment's value will change due to a change in the absolute level of interest rates, which can affect both debt and equity instruments.