B-Lymphocytes Are Categorized as Part of the Adaptive Branch of the Immune

question 69

Multiple Choice

B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one.Which of the following is not one of the reasons B-lymphocytes are considered part of the adaptive immunity?

• A) Their receptors will bind to only one antigen.
• B) They are a first line of defense that can begin killing pathogens immediately.
• C) They require costimulation from an activated T-helper cell.
• D) They produce memory cells when activated.

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Initial Cost

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The point at which total costs and total revenues are equal, leading to neither profit nor loss.

Variable Costs

Costs that vary directly with the level of output or production, such as materials and labor.

Fixed Costs

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