John is an engineer at a factory. He installs settling chambers to control the pollutants produced by the factory Which pollutant is he trying to manage?
A)
ozone
B)
particulates
c)
lead
D)
hydrogen sulfide

B. Particulates

Explanation:

Factory emissions contribute greatly to the release of carbon dioxide into the atmosphere and black carbon belongs to a class of air pollutants called particulate matter.

this is math not biology xd

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.