Looking under a microscope at a blood smear, you see erythrocytes that are elliptical and nucleated. From which species was this sample most likely collected?  

Dogs demonstrate what type of estrous cycle?

BONUS: How many chambers are found in the sugar glider’s heart?

Which of the following vessels is most commonly used for blood collection in the chinchilla?

It is possible to perform a vasectomy in animals, yet most commonly, both testes are removed instead. Why?

Reticulocytes are immature red blood cells. When might you expect to see reticulocytes on a blood smear?

Which of the following species give birth to precocial young?

BONUS: Which of the following hormones stimulates gamete production?  

Which of the following mammals has a cloaca where the gastrointestinal urinary, and reproductive tract empty?

T killer cells function to: