262 LIVING THINGS IN THEIR ENVIRONMENT 



Wright Pierce 



Will all of these flowers produce fruit? Read 



your text carefully before you give a reason for 



your answer. 



This is a simple flower of the lily family. Its parts 

 are in 3's. Do you find any evidence of this? 



oxygen is given off as 

 a waste product dur- 

 ing the process. We 

 shall learn more of the 

 details of this process 

 in our later study of 

 plants and animals. 



How Plants Grow. 

 Green plants grow 

 larger and produce 

 more leaves and 

 branches because the 

 buds, which you can 

 find in the winter on 

 the sides and tips of 

 the branches, burst 

 open and grow either 

 into branches with 

 their leaves, or into 

 flowers. You have all 

 seen an apple, apricot, 

 or other fruit tree in 

 bloom. The flowers 

 come in the spring so 

 that there is plenty 

 of time for the seeds 

 to ripen before cold 

 weather. The food 

 and water necessary 

 for growth is trans- 

 ported through the 

 tubes in the leaves 

 and stems to the 

 places where rapid 

 growth is taking place. 



