In Mexico, collective bargaining agreements are sometimes said to be more a function of government economic policy than independent union collective bargaining.

Which region of a sarcomere contains thick filaments overlapping with thin filaments?

A) A band
B) Z line
C) H zone
D) I band
E) M line

During a specific defense, the process of increasing the numbers of the selected cells is called:

A) mitotic expansion.
B) clonal selection.
C) divisional activation.
D) lymphocytic activation.
E) memory establishment.