If there were a fire, explosion, or bomb threats in schools, for example, are required to evacuate but if it's a sniper or shooter then they do a lockdown. Because if the shooter is on the outside and they decide to evacuate then they could get shoot so most schools and places do lockdowns.
So the answer would be a sniper. I hope this helps!
Answer:
Illness
Explanation:
My mom helped me. Ps. she's a teacher
Its created by several people blotjust one however they are all scholarly people
Answer:
Drosophila biology: The common fruit fly is a model organism for genetic studies. The reason it is so widely used is because it is easily cultured in the lab, has a short generation time, and can produce many offspring. ... Larvae tissues degenerate and reorganize forming an adult fly inside the pupal case.
Explanation:
