Organism > System > Organ > Tissue > Cell > Molecule > Atom
Answer:
A. It's a reliable source because it's from the government, not a website based on other people's opinions.
Hi the answer is Steven will be abusing drugs again when he returns to his old neighborhood.
Hope this helps.
The answer is Vaccination.
Acquired or adaptive immunity is the body's third line of defense. This is protection against specific types of pathogens. Acquired immunity may be either natural or artificial in nature. Both natural and artificial immunity have passive and active components. Active immunity results from an infection or an immunization, while passive immunity comes from naturally or artificially gaining antibodies.
