We continue to see sickle-cell anemia in certain populations because the presence of one recessive gene for sickle-cell anemia ______.
a. provides the individual with some level of protection from malaria
b. is associated with longevity so the individual is more likely to pass the gene to his or her children
c. also produces large amounts of human growth hormones (HGH), which is beneficial
d. makes the individual more resistant to the negative effects of stress
Ans: A
You might also like to view...
Temperament is important for caregivers to know so they can do which of the following?
A) Adjust expectations to meet children's temperament needs B) Be firm and ridged in response to temperament differences C) React strongly when there is a mismatch between an adult and a child's temperament D) Help children to change their temperament to match the adult
A psychologist was interested in predicting how depressed people are from the amount of news they watch. Based on the output, do you think the psychologist will end up with a model that can be generalized beyond the sample?
A. No, because the errors lack linearity. B. Yes, because errors are normally distributed C. Yes, because errors are independent. D. No, because the errors show heteroscedasticity
The original purpose of intelligence tests is still their main purpose today—that is, to:
a. Assess students' ability to solve abstract problems b. Measure students' innate ability to adapt to a complex environment c. Identify students who may require special educational services d. Predict how well students are likely to perform in various professional careers
Variables
a. represent a construct in quantitative form. b. can take the form of test scores, but not categories. c. are inferences about behaviors that cannot be directly observed. d. are almost always derived from a specific theory.