Rats spread disease some don't have to be! some are worshiped by people and are allowed to roam the streets! but most rats should be controlled because they do carry diseases that can harm you! also if you have a rat problem, don't use poison because if another animal like your cat or dog eats that dead poisoned rat, they might die too! and that would be bad!
If Wild rats are a problem than poison baits or traps will make them go away. Pet Rats on the other hand can be trained with care and patience to do tricks. In the Hollywood films they have used trained Rats simply because trained rats do what the director of the film wants done
definitely not rats and bacon, maybe god?
Controlled variables are quantities that must remain constant.
Nothing, saline would have no effect on rats and would be used as a control.
Your question must tell the NAME of the disease for anyone to answer it.
No it is not, but you must have a prescription for it.
Both goats and rats tend to be viewed as negative symbols. So the dream suggests that you have "fenced in" or controlled several different sorts of problems.
a controlled experiment must have only one manipulated variable becuase if the experiment had multiple manipulated variables then it would not be a controlled experiment anymore it would be a manipulated Deseret experiment
All the above
Insects must be controlled because they can over populate. Some can be quite harmful to humans and others are just plain pests.
They are cockroaches,flies and rats because they are vectors of disease and can get access to food we consume if not controlled.
Pretty much having controlled variables. Controlled variables are something in the experiment that must remain the same through all tests. For example, if you are testing the decay of an apple... The temperature that the two fruits are enduring during the experiment must be the exact same.