All of the following are parts of the forensic science crime lab, except: O Serology Unit
O Homicide Unit
O Toxicology Unit
O Photography Unit

I honestly don't know because I feel like all of these are used in a forensic science crime lab. If I had to guess it would be the homicide unit. All of the unit serology, toxicology, and photography are all used in the homicide unit to help solve the cause of death and things like that.

Explanation:

answer:

the world will never kno

explanation:

violet light has a shorter wavelength than blue light. violet light is scattered more than blue light. however, the human eye is less sensitive to violet than to blue. as a result, we perceive a blue sky instead of a violet sky.