Human characteristics come from A. nurture/networks.

B. class/nature.

C. socialization/nurture.

D. nature/nurture.

E. class/resocialization.

D

Explanation:

The nature versus nurture debate involves whether human behavior is determined by the environment, either prenatal or during a person's life, or by a person's genes. 

answer; i believe that the correct answer is (scientific approach)

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.