There are two classes A and B consisting of 40 and 52 student respectively . If the average of weight of class A is 45kg and that of class B is 40kg.Find the average of weight of all the student of class A and B.

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#Question id: 1989

#Section 2: General Biology

Which of the following are T cells of the immune system?

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#Question id: 1990

#Section 2: General Biology

B cells interacting with helper T cells are stimulated to differentiate when

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#Question id: 1991

#Section 2: General Biology

Why can normal immune responses be described as polyclonal?

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#Question id: 1992

#Section 2: General Biology

How do antibodies of the different classes IgM, IgG, IgA, IgD, and IgE differ from each other ?

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#Question id: 1993

#Section 2: General Biology

When antibodies attack antigens, clumping of the affected cells generally occurs. This is best explained by

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#Question id: 1995

#Section 2: General Biology

What is the primary function of humoral immunity?