QUESTIONS 



1 In what sense are the adjustments of Hving things to their environment 

 fixed in their structure or in their development? 



2 To what stimuU do plants commonly respond? 



3 How do plants respond to different stimuli? 



4 What makes plants grow faster in some regions than in others? 



5 In what respects are the mechanical responses of plants adaptive? 



6 In what respects are the tropisms of animals like those of plants ? different 

 from those of plants? 



7 What factors determine whether plants and animals that have been shifted 

 from their natural environment will adjust themselves to the new surroundings? 



8 How do various kinds of living things repair injured tissues? 



9 How can the native instincts in organisms be modified into new forms of 

 behavior ? 



10 In what respects are habit formation and education alike? In what 

 respects different? Which receives the more emphasis in the training of animals 

 to do stunts? in the guidance of human beings? 



11 In what respects is the behavior of men Hke that of other animals? In 

 what respects different? 



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