Answer:
d
Explanation:
i got 100 on a test with this question
It will be easy about me, why do you think? As an independent sovereign Ivan lll began to behave towards the Tatars. In 1476. He refused to pay them an annual tribute and entered into an alliance with the Crimean Khan, an enemy of the Golden Horde. Standing on the Ugra (1480) put an end to the Mongol-Tatar yoke. The Russian state acquired formal sovereignty.
False.* It was written around ~300BC - 1 century BC
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* New Testament was written starting from 1 century AD onward
He was influential of being a military leader and the first president...
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.