94 Education through Nature 



I 



3 



Step VI. RECI- 

 TATION. 



i. Morphology 



1. history "| 



2. form ! j i- 



3. structure [ (2. 

 L 4. origin J 



whole 

 organs 



How related to 



work of 

 2. Physiology 



How related to 

 3. Ecological 

 factors 



i. function- 



2. uses of 



'i. nutrition 



2. circulation 



3. respiration 



4. secretion 



5. excretion 



6. motion 



1. food 



2. light 



3. heat 



4. soil 



5. water 



6. chemicals 



i: 



struggle for existence 

 adaptations 



