Specialized proteins that bind to a pathogen's specific antigen and mark it for destruction are called

A. antibodies.
B. lymph nodes.
C. vaccines.
D. prodromes.


Answer: A

Health & Biomechanics

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Damage to the retinal blood vessels in premature infants due to excessive oxygen therapy is:

A) scleritis. B) trichiasis. C) retrolental fibroplasia. D) xerophthalmia.

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Which condition is a protrusion of part of the stomach through the diaphragm??

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Only advanced students should participate in archery activities

Indicate whether the statement is true or false

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