I believe your answer would be Echinoderms and Chordates. I hope this helps!
        
             
        
        
        
Letter B is correct answer that what I am thinking
        
             
        
        
        
Answer:
Land use goes up as human population goes up. This is because the more people there are alive, the more land that people will be using. Hope this helps :)
 
        
                    
             
        
        
        
Planting the same crop in the same place each year zaps nutrients from the earth and leaves soil weak and unable to support healthy plant growth. Because soil structure and quality is so poor, farmers are forced to use chemical fertilizers to encourage plant growth and fruit production.
        
             
        
        
        
Answer:
true
Explanation:
 because land environment is different from water environment . 
Hope it help you