318 Our Surroundings 



10. Name the conditions necessary for the growth and development of 

 living things. 



11. Why is man less dependent on natural surroundings for food and 

 heat than are animals? 



12. Is the lifeless matter in a living body of any real value or is it waste 

 material? Why? 



PROJECTS 



1. Make a collection of various kinds of tissue. Label each kind. 



2. Examine with a microscope, separately, several pollen grains of dif- 

 ferent flowers. Each is a cell. 



OUTDOOR OBSERVATION 



Observe, in the course of your walks, trees and other growing things 

 and list or collect parts to show lifeless and live matter. 



REFERENCES 



General Biology Sedgwick and Wilson 



General Biology Abbot 



