ii THE METAZOA 73 



place in a number of different classes of animals. In this 

 form of reproduction a process or bud (Fig. 32, bd) is given 

 off from some part of the parent animal ; this bud sooner 

 or later assumes the form of the complete animal, and may 

 become detached from the parent either before or after its 



FIG. 32. Fresh-water polype (hydra), two specimens, the one expanded the other 

 contracted, showing multiplication by budding. bd l &d* bd z , buds in various 

 stages of growth. (From Parker's Biology.} 



development has been completed, or may remain in perma- 

 nent vital connection with it. 



When the buds, after becoming fully developed, remain 

 in vital continuity with the parent, a sort of compound 

 animal, consisting of a greater or smaller number of con- 

 nected units, is the result. Such a compound organism is 



