Which of the following describes the classical pathway of complement activation?

A) Complement proteins activate when mannose-binding lectin binds to the pathogen.
B) Complement proteins activate by coming into contact with certain blood-clotting proteins.
C) Complement proteins activate when triggered by macrophages or neutrophils.
D) Complement proteins activate when antibodies bind to a pathogen.
E) Complement proteins activate by directly interacting with the pathogen.


Answer: D

Biology & Microbiology

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Four of the five features listed below are related by a

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All of the following are adaptations of black-tailed prairie dogs except:a

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