32 ELEMENTS OF MAMMALIAN ANATOMY. 



PRACTICAL QUESTIONS AND SUGGESTIONS. 



1. What advantages are derived from the study of mammalian anat- 

 omy? 



2. Define morphology and state a fact from that science. 



3. What two sciences does biology include? 



4. What five sciences are included in zoology? 



5. Make a physiologic statement concerning the heart. 



6. State five facts belonging to the science of distribution. 



7. What is taxonomy? 



8. Name five classes of vertebrates. 



9. By examining specimens discover what external feature distin- 

 guishes a reptile from an amphibian. 



10. Do all mammals have hair? 



11. What habit is common to no other vertebrates except mammals? 



12. Give two points of difference between the two subclasses of Mam- 

 malia. 



13. Name the ten orders of Eutheria and give an example of each. 



14. Which orders derive their names from the habits of the animals? 



15. Which orders derive their names from anatomic features? 



16. Which orders are aquatic? 



17. What is the ultimate syllable of all family names? 



18. Explain what is meant by binomial nomenclature. 



19. Name three families of Carnivora. 



20. Examine specimens and determine wherein the teeth of Canidae 

 differ from those of Felidae. 



21. What two rank names constitute the scientific name of an animal? 



22. Give the scientific name of five Carnivora, two Ungulata, and two 

 Primates. 



23. Define organ, system, tissue, and cell. 



24. Name two organs belonging to each system. 



25. How do the elements of the four kinds of tissue differ? 



EXTERNAL FEATURES. 



The cat, like all other mammals, possesses two well- 

 defined skeletons, the endoskeleton, consisting of the true 

 bones, and the exoskeleton, composed of the skin and its 

 appendages. The skin invests the body completely and 

 is continuous with the lining of the digestive and uro- 

 genital canals. It varies in thickness in different regions, 

 being very thin on the lips, ears, and eyelids, and ex- 



