A LIVERWORT. 25 
10. Make careful drawings of the entire plant bodies 
which produce the sperms (male gametes) and the 
eggs (female gametes) and designate all the parts. 
Cc. Life Problems. 
1. Is there any advantage in the horizontal position of 
the plant body ? 
2. How can it successfully take possession of certain 
considerable areas of soil ? 
8. What are its methods of multiplication ? 
4. Why are shade and moisture so necessary to growth ? 
5. Where is this plant commonly found in cities? 
Why? How did the plant get started in such 
places ? 
