Doctors try to remove tumors from the body to prevent it from spreading and affecting other parts of the body.
Well a person with HIV would only have AIDS if he/she has really low number of CD4 cells if this is the case that is when doctors would diagnose that person with AIDS. Hope I helped
Scientists often perform experiments to check and recheck their work. They also redo these experiments to ensure correct results.
Answer:
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The
two categories that are used to classify physical changes are Reversible and
Irreversible.
Reversible
means that the matter can convert to gas, liquid and solid and then convert
back to gas, liquid or solid. So it means it can convert back and forth.
<span>Irreversible
means that matter cannot be converted back as it is before.</span>
