Heritability __________.

A) is about .50 for IQ
B) is immutable for a particular trait
C) cannot be affected by environmental changes
D) refers to the number of points in an individual's IQ score that are determined by genetics

Heritability refers to the proportion of variation in a trait that can be attributed to genetic factors. In the case of IQ, heritability is estimated to be around .50, meaning that about half of the variation in IQ scores can be accounted for by genetic factors. It is important to note that heritability does not refer to the percentage of a trait that is determined by genetics in an individual, and it is not immutable - environmental factors can also influence heritability.