I have to say airborne infections. If the infection is airborne it can travel and infect many people more quickly and wide spread.
Answer:
In the second picture, the answer is A to attach to a host cell.
In the third, the fourth and the fifth the answer is D.
Explanation:
Answer:
i know this! its evaporation.
Explanation:
<span>The molecules that provoke a specific immune response are called antigens.
</span>This molecule initiates the production of an antibody and causes an immune response. T<span>oxins, chemicals, bacteria, viruses, or other substances that come from outside the body can be part of the antigens.
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