Find the exact value of the expression 

1. What is the four-part protein that contains iron and carries oxygen in our blood? 2. When the immune system can recognize part of a foreign object (like proteins on the surface of a virus particle), that object is called a(n) _________. 3. Hematocrit is the percentage of ____ out of a sample of whole blood.

Which type of immune response is always active and provides broad protection?

 Name the blood vessels indicated in the picture (including the words “artery” or “vein” where appropriate). Hint: A is the armpit.

Type AB+ :

Which of these would you treat with an anticoagulant like aspirin or heparin?

Type B+ :

Leukocytes with dark blue granules; rarest, produce histamine:

As adults, where are most of our blood cells made?

Which immune problem is caused by a virus that invades T cells?