Which of the statements are true regarding antigen

The Ig involved in host defence against parasitic infection (helminths)

The Ig that mediates allergic reaction is

IgMis a

Any agents that may stimulate the immune system and enhance the response without having any specific antigenic effect by itself.

The most effective Ig is

Whch of the following immunoglobulin is produced early in the primary response to infection?

Which of the following antibody directly take part in opsonization process?

Which of the following immunoglobulin is the most abundant immunoglobulin in newborns?

The antibody which is found in secretions is: