Lactose Intolerance Affects About 10% of Non-Hispanic White Americans, 50

question 152

Multiple Choice

Lactose intolerance affects about 10% of non-Hispanic white Americans, 50% of Hispanic Americans, and 70% of African, Asian, and Native Americans. Seventy-four percent of U.S. residents are non-Hispanic whites, 10% of them are Hispanic, and 11% are African, Asian, or Native American. If a person is selected from this group of people, what is the probability, to four decimal places, that the person will be lactose intolerant? ​

• A)Pr(lactose intolerant) = 0.1240
• B)Pr(lactose intolerant) = 0.2010
• C)Pr(lactose intolerant) = 0.1270
• D)Pr(lactose intolerant) = 0.1510
• E)Pr(lactose intolerant) = 0.1310

Understand the role of attachment and sexual intimacy in promoting each other.

Evaluate the impact of perception and appreciation of partner traits on relationship satisfaction.

Discuss longitudinal research findings on how marital relationships change over time.

Explain the evolutionary theory of sexuality and differences in mate selection between genders.

---

Definitions:

Neuroplasticity

The brain's ability to reorganize itself by forming new neural connections throughout life, allowing the neurons (nerve cells) in the brain to compensate for injury and disease and to adjust their activities in response to new situations or changes in their environment.

Absolutely Refractory

The state of an axon in the repolarizing period, during which a new action potential cannot be elicited (with some exceptions) because gate 2 of sodium channels, which are not voltage-activated, are closed.

Relatively Refractory

The state of an axon in the later phase of an action potential, during which higher-intensity electrical current is required to produce another action potential; a phase during which potassium channels are still open.

Periods

In geology, divisions of geological time; in biology, typically refers to the menstrual cycle, a regular natural change that occurs in the reproductive system.