50 LIFE ON THE FARM. 



body, higher plants have organs especially fitted 

 for that work. And, instead of dividing and break- 

 ing to pieces in order to produce new plants, those 

 of complex structure have special organs for the 

 production of seeds. These seeds germinate and 

 become new plants without any disturbance to the 

 parent plant. 



Complex plants might be compared to a civilized 

 community. There each person does some partic- 

 ular thing instead of everything necessary to life. 

 The baker can bake good bread because he has all 

 his time and strength for that one thing, and the 

 tailor can make good clothes for the same reason. 

 The same is true of the higher plants. Leaves can 

 breathe well for the plant because they give all 

 their time and strength to that one office. 



Simple plants can be compared to a savage com- 

 munity where every man is everything carpenter, 

 tailor, shoemaker, butcher. Nothing in such a 

 community is done well because there are so many 

 different things for each man to do. Because of 

 this division of labor, complex plants are usually 

 the largest and finest types. 



Cells form tissue, and tissue forms organs. One 

 of the main differences, then, between a very sim- 

 ple plant and a complex one, is that the simple 

 plant consists of a single cell, and the complex plant 

 consists of a very great number of cells constructed 

 into tissue, and the tissue constructed into organs. 



Plant cells can easily be seen with a low-power 



