Iq tests are said to have "reifled" intelligence; this means that iq tests
a. are a valid way to measure a person's inborn intelligence
b. have provided a way of finally understanding the nature of intelligence
c. gender-base (females generally score higher than males)
d. is cultural (iq exams often reveal differences in the cultural backgrounds of differences in actual intelligence)

a. are a valid way to measure a person's inborn intelligence

Explanation:

IQ testing is an important tool for measuring an individual's innate intellectual abilities, as long as its content is not limited to just one area of knowledge. Cognitive ability is related to hereditary and cultural characteristics that can be inherited or developed throughout life. Over the years, experts have developed techniques for measuring individual intellect.

The tool is used to obtain an intelligence indicator for different purposes. Following the original idea of the test, its application may be necessary to identify children with attention deficit or who are in a more advanced learning process than other students.

The IQ test is also used to diagnose issues related to an individual's behavior and conduct, and to support a job selection process.

d. the weight of the book

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.