Minerals in geodes (as seen below) form spectacular euhedral crystals because

Chapter-6

The classical pathway of complement activation begins when ________.

This antigen recognition receptor is found on the surface of T cells.

Which statement reflects immunity in living things?

A fungus binds a dendritic cell on Dectin 1 and releases particular cytokines.  These cytokines will cause naive T cells to become _________________.

In the case, a patient had deficiencies in C8. What is the role of C8 in the immune response?

Apoptosis is the prefer method of cell death for the immune response.  Why?

These immune cells capture antigens and display them to B cells.

___________________ is an example of the first line of defense.