During negative selection, T cells are tested to ensure that they:

In order to be absorbed, proteins must be broken down into ____________________.

What is the best definition for filtrate?

When the diaphragm moves down (contracts), volume of the thoracic cavity ___________________ and your lungs ________________

Glucoamylase is a digestive enzyme that breaks down _________________ and is active in the _______________.

Which layer of the alimentary canal wall is primarily involved in motility?

Because you have no immunity to Hepatitis A, you receive the Hep A vaccine.  Your body responds to it as if it were the live virus.  This is a _______________________ response. 

Which of these is entirely a passive process?

Your body is infected by a microorganism that is causing interferon to be released.  What type of microorganism is it?

Suppose you needed to design a cell membrane that would PREVENT the movement of gases across it as much as possible.  Which of these membranes would work best (the arrow indicates the direction that air needs to move)?