The flu vaccine changes every year. The flu vaccine is based on a predicted strain that is anticipated to be the most infectious that year. Thats why people who sometimes get the vaccination still get the flu, they don't have the antibodies for the strain they were infected with. Strains for viral disease don't change very much and usually the vaccination for them cover them well.
Answer:
electrical energy
The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy.
The answer is "<span>B: all the gray squirrels that live in a forest" </span>
The answer is B. Natural selection will find a way to affect one, then that one will affect many others.
