PLANTS. 



51 



microscope in the thin, transparent tissue peeled 

 from an onion. Cells large enough to be seen with 

 the naked eye can be separated from the pulp of 

 an orange. 



ORGANS AND FUNCTIONS ROOTS. 



Plants drink with their roots. All living things 

 require water, and plants are no exception to this 



HAY STACKS. 



rule. In fact, plants require more water for growth 

 than animals do. The roots of a plant not only 

 drink for it, but they hold it fixed to one spot, so 

 that it may grow up into abundance of air and 

 light. They keep its position against the wind and 

 other things that tend to destroy it. 



One part of a plant has a natural inclination for 

 light, hence, it grows upward. The other part has 

 an inclination for the soil and darkness; hence, it 

 downward. Roots grow in all direction? in 



