For the rat that you selected in Question 38, how could you tell that the rat you selected was in pain? 

An ABSL – 4 lab would be appropriate for working with which of the following hazards?

Which hay type shown in the image below – A or B – is most appropriate for the guinea pig to receive daily?

A nude mouse is anesthetized, prepped for abdominal surgery, and then placed on a sterile towel on the surgical table.  The surgery takes approximately 30 minutes.  Shortly after recovery, the mouse dies.  What is the most likely or common reason for this to have occurred?

What is the name of this item shown in the image?

Marquis’ argument against abortion would also necessarily mean that contraception is morally-wrong.

Huemer’s Principle:

What class of Biological Safety Cabinet is this? 

Measure from the [location1] to the [location2] to correctly pass a tube for administering a substance via oral gavage.

What volume of pentobarbital would you give to a 400-gram rat if the dosage prescribed is 40 mg/kg IP?  The concentration of pentobarbital in the bottle is 50 mg/ml.  Keep in mind that you may need to perform a dilution!  Show your work to receive full credit for your response.