Multiple Choice
Which of the following is true of antigens in the blood?
A) They are small molecules that are capable of suppressing the immune system.
B) They are enzymes within the body that attack invading organisms.
C) They are the chemical barriers that surround uninfected cells.
D) They react with the antibodies that are released to fight them.
Correct Answer:
Verified
Correct Answer:
Verified
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