When does trace evidence occur? A. when a perpetrator forgets something at a crime scene
B. when an eyewitness tells Investigators what they saw
C. when a perpetrator wears shoes that can be traced to the manufacturer
D. when two objects come into contact with one another

c. the initial amount of money placed in the savings account

it marks things for degradation via the proteasome. it alters there celluar location.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.