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BIOLOGY FOR BEGINNERS 



INTERNAL STRUCTURE 



Region of growth. 

 Functions of roots : 



Absorption (most roots). 

 Fixation in soil (most roots). 

 Storage (carrot, etc.). 

 Propagation (hop, dahlia, etc.). 

 Modification of Roots: 



Caused by difference in 

 Function. 

 Climate. 

 Soil. 



Moisture. 



General surroundings. 



Exposure. 



KINDS OF ROOTS 



ADVENTITIOUS FORMS 



