Why Is a Second Weapon System (Specifically Cell-Mediated Immunity)in Addition

question 36

Multiple Choice

Why is a second weapon system (specifically cell-mediated immunity) in addition to humoral immunity needed to defend the body against invading pathogens?

• A)Humoral immunity is ineffective against antibodies.
• B)Antibodies are not effective against pathogens that are present inside cells.
• C)Antibodies are not effective against pathogens that are present outside cells.
• D)If used too often,antibodies can attack red blood cells.
• E)Antibodies are typically ineffective against bacteria,while they work well against viruses.

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Profit that is not distributed to the shareholders but is kept by the company for future investment or to pay off debt.