PHYSIOLOGICAL PROCESSES IN PLANTS 47 



Conclusion. In what other ways do you find pollination may be 

 brought about ? Tabulate your results as follows : 



Questions 



1. How is a sage blossom fitted for the visits of insects ? 



2. Do all flowers of an apple tree produce seeds ? How do 

 you know ? 



3. Why do flowers produce an abundance of pollen ? 



4. Why does a "volunteer" stalk of corn standing alone in 

 a garden commonly have but a few grains of corn on the ear ? 



5. Do insects intentionally carry pollen ? 



6. Why do bees visit flowers ? 



7. Does the odor of flowers seem of any consequence ? Nec- 

 tar ? 



8. What is the importance of color in flowers ? 



9. Have you ever seen insects moving from flower to flower ? 

 What do you infer ? 



10. Show why bees are likely to visit flowers before the pol- 

 len is ripe, or the stigma ready to receive it. 



11. Do you infer that bees are able to see, smell, and taste ? 



12. What other insects have you ever seen visit flowers ? 



13. Could a solitary willow bear seeds ? 



14. What determines the position of the flower and fruit ? 



15. What animals other than insects act as fertilizing agents ? 



16. Night-opening flowers are commonly white, sweet-smell- 

 ing, and large. Is this of any advantage ? 



