EEVIEW QUESTIONS 



These questions are not intended for consecutive classroom 

 use. Neither is it intended that the pupil shall turn to any spe- 

 cific page for an answer. When he has completed the book he will 

 find that he will be able in most cases to answer the questions 

 without reference to the text and that his effort will be an easy 

 method of review. 



1. Explain evaporation without using the word heat. 



2. What has evaporation to do with human physiology? 



3. In what way is the economical principle of division of labor 

 exemplified in the development of animals? 



4. Why (physiologically) does a dog pant? 



5. How is the same result accomplished in human beings? 



6. Does anything similar happen in frogs ? Explain. 



7. Should toads be killed or preserved? Earthworms? Cater- 

 pillars? 



8. Is it necessary to chew soft foods? 



9. Trace the digestion and absorption of a drop of milk. 



10. Why can we not commit suicide by holding the breath? 



11. Are the blood corpuscles living or dead? Are the white and 

 red corpuscles composed of the same material? 



12. Are potatoes fattening? Explain. 



13. Mention a many-celled animal that does not have a cir- 

 culatory system and explain what compensates for its lack. 



14. Does the blood flow faster in the capillaries or in the 

 arteries ? Explain. 



15. What is the physiological cause of blushing? 



16. When an earthworm is touched it crawls away, when an 

 anemone is touched it merely jerks back close to its support. 

 Explain physiologically and mechanically. 



17. To what physiological factor is the sensation of cold due? 



18. Why is it considered unsportsman-like to "hit below the 

 belt"? 



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