(1)Although the debate continues over the influence of heredity, as opposed to environment, in human development, scientists have learned that a number of human characteristics clearly have genetic factors. (2)Physical traits are most strongly determined by heredity. (3)Height, obesity, and patterns of tooth decay are just a few of the traits that have been found to be determined by our genes. (4)Intellectual traits are also strongly influenced by genes. (5)For instance, research indicates that scores on intelligence tests and memory have a strong hereditary basis. (6)In addition, personality factors are greatly influenced by heredity. (7)Shyness and special talents and interests are all influenced by genetic transmission. (8)Even emotional disorders such as schizophrenia are affected by genes.

6. The paragraph is made up of a series of

a. reasons.

b. types.

c. definitions.

d. characteristics.