Osts Are Often Divided into Two Categories: ____________

question 45

Multiple Choice

osts are often divided into two categories: ____________.

• A) fixed and flexible costs
• B) direct and indirect costs
• C) necessary and unnecessary
• D) expected and unexpected
• E) budgeted and unbudgeted

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Definitions:

Antigen-presenting Cells

Specialized cells that process and present antigens to T-cells, initiating an immune response.

Cold Viruses

Viruses responsible for the common cold, primarily rhinoviruses, which infect the respiratory tract and trigger symptoms like coughing and sneezing.

Thymus Gland

An endocrine gland that functions as part of the lymphatic system; processes T cells; important in cell-mediated immunity.

T Cytotoxic Cells

A type of T cell (a form of white blood cell) that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.