A small Ca+2 binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca+2 concentration is known as______________?

A small Ca+2 binding protein that modifies the activity of many enzyme

1.	A small Ca+2 binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca+2 concentration is known as______________?
A.	Cycline
B.	Calmodulin
C.	Collagen
D.	Kinesin
Answer» C. Collagen