The main difference between the organisms are the uses of the appendage and the size and number of certain bones. The human arm is used for a variety of functions while the lizard's and the cat's are used for walking an climbing, the whale's for swimming, the frog's for support and the bird's and the bat's for flying.
        
             
        
        
        
Answer:
it increases the viewing size.
Explanation:
Function of microscope is used to enlarge organisms for better look
 
        
                    
             
        
        
        
Answer:
The answer is cellular respiration 
 
        
                    
             
        
        
        
Answer: The troposphere. 
It contains half of the earths atmosphere. Weather occurs in this layer.
        
                    
             
        
        
        
The answer is C hope this helps