Many people with human immunodeficiency virus (hiv) wear a mask to cover their noses and mouths. which statement best explains the importance of the mask?
it prevents hiv patients from catching airborne diseases.
it prevents the spread of hiv to nearby people.
it prevents the dna of hiv patients from becoming faulty.
it prevents hiv patients from becoming contagious.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.