Answer:
Convergent evolution; even though these animals are all different classes, they have developed similar features due to the environments they live in. We call these analogous features and the means by which they develop convergent evolution.
 
        
             
        
        
        
Answer:
 II. the textures of organs
Explanation:
A human torso model is designed to be as accurate as possible so that students/researchers can understand the inner workings of the body. Therefore, the organs have been designed to be the same size of an actual human being of that stature, while also being in the correct position within the body to better understand the interrelationships between the organs. The only thing that is not accurate in these models is the texture of the organs as most are smooth plastic unlike the actual organs.
 
        
             
        
        
        
Help with what? I don’t understand what you need help with ?
        
                    
             
        
        
        
Answer:
The axonal membrane (place as brainliest so others know its correct) 
 
        
             
        
        
        
DNA (deoxyribonucleic acid)