Idiom
Select the correct statement about active and passive immunity.

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

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Idiom
To be above board

To be honest in any business deal
None of these
To have a good height
They have no debts
To try to be beautiful

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