Idiom
The main function of heamoglobin is

Control Blood Pressure
Produce hormones
None of these
Carries Oxygen

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Idiom
Select the correct statement about active and passive immunity.

A vaccination is an example of the introduction of passive immunity into the body
Immunological memory is established by passive immunization
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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