<em>Spider = invertebrates </em>
<em>horse = vertebrate </em>
<em>Caterpillar = invertebrates </em>
<em>human = vertebrate </em>
<em>eagle = vertebrate </em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
 
        
                    
             
        
        
        
Number one is structural and 2 is behavior 
Three is structural 
Four is structural 
The last one behavior
        
                    
             
        
        
        
For me I would have to go with C. They always have the same number and kinds of Chromosomes. 
        
                    
             
        
        
        
It would collapse or implode