Multiple ChoiceMore than one choice may apply.Which of the following antibody capabilities causes a transfusion reaction with A or B erythrocyte antigens?a. Neutralizationb. Precipitationc. Complement fixationd. Agglutination

Cytotoxic T cells are primarily involved in ____________.

T cells mature in the __________ & B-cells mature in the ____________.

Your friend tests her snake-wrangling skills on an eastern diamondback rattlesnake, and is bitten and envenomated (injected with the snake's venom). In the emergency department, doctors administer the antivenin CroFab, which contains antibodies to the toxins in snake venom. Is this an example of active or passive immunity? Will this confer any lasting protection to your friend?