The differences between the prelinguistic, holophrase, and telegraphic speech stages of language development illustrate which theme in the text?
a. Active child
b. Nature/nurture
c. Quantitative/qualitative
d. Holistic
Question 2
An adaptive advantage of sickle-cell anemia is that it
a. eliminates the necessity for doing strenuous labor.
b. reduces the number of patients who eventually retire and then demand social security pensions.
c. provides resistance against malaria infection.
d. is a natural cure for HIV/AIDS.