Answer:
1.) bread A= avg of 9 pounds
bread B= avg of 12.125 pounds 
2.) some factors that could affect this is their diets or how their feed or how much exercise they get or just genetics. 
3.) to track the growth rate, you would want to record their weight every time you see them/how often you can. and monitor them every year.
Explanation:
to find average you add all of the numbers together and divide by the amount there is there.
 
        
             
        
        
        
<span>Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
</span>
        
                    
             
        
        
        
Answer:
They excrete pheremones that notify the colony of a situaiton.
Explanation:
 
        
                    
             
        
        
        
Answer:
The correct answer is letter C. Experimentation.
Explanation:
 For a scientist, assessing the validity of information requires experimentation. In statistics and sciences, the validity of an information has no agreed definition but it generally refers to the how the concept is being experimented before reaching to the point of conclusion.
 
        
                    
             
        
        
        
B. an atom
Atoms are the basic units of matter and the defining structure of elements.