Okay i will try they is no possible answer
        
             
        
        
        
Amount of wear, and how long they are may contribute with age and maybe even coloration and pigment. 
        
             
        
        
        
Answer:
Platelets would release signals to stimulate the production of more platelets
Explanation:
Positive feedback mechanism is one of the two types of feedback mechanisms (other being negative feedback mechanism) in which the products of a process stimulates more of that product to be synthesized or produced. In other words, the result of a reaction increases the secretion of more results. 
In this case where the injured tissue of a cut initially releases chemical signals into the bloodstream. These chemicals signal platelets to be attracted to the injured area. However, if this is a positive feedback mechanism as explained above, Platelets would release signals to stimulate the production of more platelets. 
 
        
             
        
        
        
I believe the answer would be "Top Predators"
        
             
        
        
        
Answer:
The more sediment accumulates, the more pressure is put on the lower layers
Explanation: