12 BIOLOGY AND HUMAN LIFE 



Interest in understanding relationships 

 Interest in increasing usefulness 



5. How biology is studied 



We pick up odds and ends of information 

 Observation of plants and animals and their activities 

 Comparison and classification of forms, structures, and activities 

 Tests and experiments ; second-hand learning 



6. What plants and animals do to us 



Produce changes in our surroundings and in us 



Useful changes ; harmful changes ; indifferent changes 

 Produce materials and objects that we can use 



QUESTIONS 



1. What ten animals do you know by name when you see them ? 



2. What ten plants do you know by name when you see them ? 



3. How does a living plant differ from one that has ceased to live ? 



4. How does a living animal differ from one that has ceased to live ? 



5. In what ways does a living plant resemble a dead one ? 



6. In what ways does a living animal resemble one that has died ? 



7. How does a living plant differ from an object that has never 

 been alive ? a living animal ? 



8. How does a living plant resemble a living animal ? 



9. Give three examples of making use of electricity, although we do 

 not know exactly what electricity is. 



10. What else can we use without having full knowledge of it ? 



IL Give three examples of having better use of anything after getting 

 a better knowledge of it, 



12. Give five facts that you know about some plant or plants without 

 ever having studied them ; about some animal or animals. 



13. Name all the occupations that you know about which make use of 

 knowledge concerning living things. Name some which do not. 



14. Make a list of ten questions that have occurred to you in the past 

 about plants and animals, whether you know the answers to them or not. 



