TESTS 



279 



2. What are the differences between spiders and insects? 



3. Where would you look for hydra, crayfish, clams, and toads? 



4. How can you distinguish between an amphibian and a reptile ? 



5. What is the life history of a frog common in your locality? 



6. Where and what fossils may be found in your locality? 



Practical Problems 



1. Make a collection of all invertebrates that you can find in your 

 community. Classify them and arrange them in evolutionary order. 



2. Fill out the following table. 



Structures 



Fish 



Amphibian 



Reptile 



Bird 



Mammal 



Organs of 

 digestion 













Protective 

 structures 













Locomotion 













Organs of 

 breathing 













Organs of 

 excretion 













Parts of nervous 

 system 











1 



Sense organs 













Useful Reference Books 



Allen, Birds and Their Attributes. (Marshal Jones Co. 1925.) 

 Ditmars, Reptile Book. (Doubleday, Doran & Co.) 

 Dickerson, Frog Book. (Doubleday, Doran & Co.) 

 Hornaday, American Natural History. (Charles Scribner's Sons.) 

 Jordan and Evermann, American Food and Game Fishes. (Double- 

 day, Doran & Co. 1923.) 

 Lucas, Animals of the Past. (Amer. Mus. of Nat. Hist., N. Y. 1922.) 

 Osborn, Men of the Old Stone Age. (Charles Scribner's Sons. 1919.) 

 Palmer, Field Book of Nature Study. (Comstock Publishing Co. 1927.) 

 Plunkett, Outlines of Modern Biology. (Henry Holt & Co. 1930.) 

 Reed, Bird Guide. (Doubleday, Doran & Co, 1925.) 



