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?

The vas deferens is responsible for which of the following actions?  

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?

T killer cells function to:  

BONUS: Identify the number on the map where gerbils come from, and name the country. (2 points)   

Which of the following is/are considered functions of the male testes?