B:American contributions to the columbian exchange
Answer:
D: to get enough soldiers
Explanation:
the main reason for drafting is because a country is in a war and needs all the soldiers they can get. soldiers keep dying and they need more of them so they force people to serve unless they leave or just physically can't because they have some disability.
Answer:
Biosafety level 3 requires at least two-door separation between the area where biohazards are used and the personnel not associated with the research, requires inward inflow into the lab and must have a visual mechanism to verify that air is flowing in the appropriate direction
Explanation:
Biosafety level 3 is required for clinical, diagnostic, teaching, researching or production laboratories working with microbes that are also following BSL-1 and BSL-2 but as these pathogenic agent can lead to life-threatening disease by inhaling it, besides other contaiment precautions, the BSL-3 facilities must have a separated entrance to laboratory door with unrestricted traffic flow and the lab must be behind two sets of self-closing doors and windows must be sealed, with a ventilation system properly directioned installed.
A. A group of people who meet to discuss a bill