The master gland of the hormonal system is?

Research must be:

How long is the blood bank ID bracelet usually good for? 

Which test requires strict skin antisepsis prior to collection?

How long is the blood bank ID bracelet usually good for? 

Of the following tests, which one is most likely to result in fatal consequences if the patient is misidentified?

The reason a phlebotomist wraps a specimen is aluminum foil for what reason?

Which situation can result in hemoconcentration?

For the black point on the phase diagram below, what are (a) the % compositions of the phases and (b) the relative weight fraction (or percentages) of Pb for each phase?  

An object is moving in a circle of radius R at constant speed. At a particular moment in time, its velocity is v and its acceleration is a. Which of the following is the value of the dot product, a.v?