involves the manipulation of genes using technology to determine their effect on behavior. 1. molecular genetics
2. selective breeding
3. genome-wide association method
4. behavior genetics

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

: )

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.