Unlike antibiotics which essentially take the place of your immune system, vaccines are used to teach your body to fight for itself. Vaccines introduce harmless parts of a virus or bacteria into your body which teaches your own immune system to recognize and fight that virus or bacteria without the risk of being actually sick. Why are vaccines less likely than antibiotics to create drug resistance in bacteria?

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

black

lasagna

lunch

math

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.