Answer:
D.To promote open and profitable international trade 
 
        
                    
             
        
        
        
Answer:
Genetic resistance (or genetic tolerance) refers to the ability of certain organisms to endure environmental conditions that are extremely stressful or lethal to non-adapted individuals of the same species
Explanation:
 
        
                    
             
        
        
        
The correct answer is 4.) Eventually they become separate species
A process of formation of a new species from an existing species is called speciation.
When a single species changed into two or more separate species, is called speciation. Speciation can take place due to reproductive isolation.  In reproductive isolation, the separated species no longer can interbreed among themselves. This is happened due to mating differences, sterility or environmental barriers which finally results into the adaptive splitting into two species.
 
        
             
        
        
        
 The answer is Hominids became more dependent on vision over time and less so on their other senses.  <span>This statement is related to the general decrease in the importance of smell and the increasingly significant use of vision. The stereoscopic (three-dimensional) vision and the appropriate perception of the resulting depth enabled the development of visual acuity over time.</span>
        
             
        
        
        
When you are sick your muscles shut down and you skeletal system helps keep you from turning into a blob.