improved water habitats for human recreation.
 
        
             
        
        
        
If the food type changes in a given environment, then the amount of each type of bird beak will change as birds with beaks more suited to the available food will consume more successfully over time. <span>The independent variable of the lab is the type of food that is available to the birds. The dependent variable of the lab is the frequency of each type-size and shape-of beaks. The conclusion will state that favourable traits place one species in a more optimal position to survive in a given envronment.</span>
        
                    
             
        
        
        
It's body cells would have 40 chromosomes and its gametes would contain half of the total genetic information, 20 chromosomes.