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murzikaleks [220]
3 years ago
7

An activity that occurs in the human body is shown below.

Biology
1 answer:
Marianna [84]3 years ago
7 0

according to another Brainly answer, "When some antibodies combine with antigens, they activate a cascade of nine proteins, known as complement, that have been circulating in inactive form in the blood. Complement forms a partnership with antibodies, once they have reacted with antigen, to help destroy foreign invaders and remove them from the body."

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