Idiom
Select the correct statement about active and passive immunity.

A vaccination is an example of the introduction of passive immunity into the body
Active and passive humoral immunity are both mechanisms of adaptive immunity that useantibodies
The antibodies utilized in active immunity are acquired from another organism
Immunological memory is established by passive immunization

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Idiom
Will o' the wisp

To act in a foolish way
Anything which eludes or deceives
To have desires unbacked by efforts
To act in a childish way

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