REVIEW QUESTIONS 203 



40. Is there any relation between the sap in a cell from a 

 flower hair and the starch in the potato cell? 



41. Starch grains increase in size and also stream across the 

 field of a microscope. How do these processes differ from the 

 growth and motion of an ameba? 



42. Mention three processes in the human body dependent on 

 the physical principle of equilibrium (balance of activity). 



43. In what way does the weight of the air affect the physiol- 

 ogy of organisms? 



44. In considering the differences and the similarities of lower 

 and higher animals, which seem to you the stronger factor in 

 the development of the world as it is to-day? 



45. Is your respect for lower animals increased, or is your 

 respect for man decreased by a consideration of the similarity of 

 their bodily functions ? 



46. Is your respect for a higher power increased or decreased 

 by a consideration of the laws that govern the physiology of 

 organisms ? 



To compare two things is to point out both resemblances and 

 differences. By bringing the general characteristics of two dif- 

 ferent things into juxtaposition, the characteristics of both are 

 fixed in the mind. Compare 



1. Living matter with non-living matter. 



2. Plants with animals. 



3. One-celled animals with many-celled animals. 



4. Lymph with blood. 



5. Arterial blood with venous blood. 



6. The constitution of milk with the constitution of blood. 



7. Fission with budding. 



8. Conjugation with fertilization. 



9. Sexual reproduction with non-sexual reproduction. 



10. The structure of a sea-anemone with the structure of coral. 



11. The structure of a sea-anemone with the structure of a 

 hydroid. 



12. The structure of an earthworm with the structure of a 

 lobster. 



13. The symmetry of an earthworm with the symmetry of a 

 starfish. 



14. The making of starch with breathing. 



