Answer:
La Tierra primitiva no tenía una atmósfera o agua libre. El planeta estaba demasiado caliente para que los gases y el agua se acumularan.
Explanation:
One major lab accident was of fire where gases were exposed to heat.
<u>Explanation:</u>
Accidents that occur in the laboratory which lead to some mishappening are known as the lab accidents. The reasons for such accidents may be many like fire, chemical spills, personal injuries and so on. To avoid all this, there should be proper check and focus while working in the lab.
One of the major lab accidents was of the fire when gas was exposed to heat. The chemical involved in this accident was the use of methane. The type of personal protective equipment worn at the time of accident was protective eye-wear and the lab coat and the lab gloves. To avoid such kind of accidents, people in lab should be very careful and it should be made sure that there are proper equipment in case of any mishap.
Answer:
B
Explanation:
Darker colors such as red and orange represent warmer temperatures and lighter colors such as green represent cooler temperatures
Northeastern USA has a lot of lighter colors meaning that it's cooler in the northeast
Southwestern USA has a lot of darker colors meaning that its warmer in the Southwest.
If you were to draw from southwest to north east temperatures would decrease as it's cooler in the northeastern areas.
Therefore we can conclude that B is the correct answer.
Answer:
Part D: pilus
Explanation:
Conjugative pili allow for the transfer of DNA between bacteria and thus evolve to be better pathogens.