Most white blood cells destroy

White blood cells: Serving as an army against harmful bacteria and viruses, white blood cells search for and attack and destroy germs to keep you healthy.

Explanation:

the answer is :

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.