Kelp can be described as <span>fast growing algae. The correct option among all the options that are given in the question is the fourth option or option "d". It is a unique kind of an algae that has the capability to grow 2 feet in a day under right conditions. I hope that this is the answer that has come to your great help.</span>
        
             
        
        
        
Hibernation is a way animals conserve energy to survive adverse weather conditions or lack of food.
        
                    
             
        
        
        
Which cells in the seminiferous tubules regularly undergo mitosis?
 Spermatogonia