People Do Not Develop a Secondary Immune Response to Influenza

question 4

Multiple Choice

People do not develop a secondary immune response to influenza because

• A) the immune system mutates from season to season.
• B) flu vaccines are not always effective.
• C) secondary immune responses are only possible against bacteria.
• D) the primary immune response is sufficient to protect against flu.
• E) the virus mutates, so it is different each season.

Describe characteristics of data distributions (bimodal, no modes).

Analyze and calculate measures of dispersion.

Understand and apply the concept of linear regression to model real-world phenomena.

Identify the steps in finding the linear regression equation from a given dataset.

---

Definitions:

Fraternal Twins

are twins that develop from two different eggs fertilized by two different sperm, making them genetically similar as ordinary siblings.

Temperament

A person’s characteristic emotional reactivity and intensity.

Heritable Personality Traits

Personality characteristics that are influenced by genetic factors and can be passed from parents to offspring.

Male-Female Genetic Differences

Genetic disparities between males and females, typically referring to differences found within the XX and XY chromosomes affecting physical, developmental, and behavioral traits.