Old or late adulthood is the stage of growth in which diseases are easily and always present and sometimes due to weak immune system and other cause are chromatic diseases. Skin continues to lose elasticity, reflexes starts to slow and same with their reaction time. mobility and muscles strength begins to decrease, hearing and vision begins to dull. Mostly people with this age may have a lower function in their brain leading to intellectual diseases such as Alzheimer's disease.
        
                    
             
        
        
        
Answer:
True
Explanation:
Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.
 
        
                    
             
        
        
        
A subjective experience of multiple physical symptoms with no organic cause
        
                    
             
        
        
        
A persons biological because its the only one that makes sense according to the study of genetics. EX: X chromosome are always in females eggs, while the x & y chromosome is in the male.
        
             
        
        
        
Answer 
here I said no to my fire one time when he told me not to stand up for someone so I refusEd his kindness by doing that
Explanation: