An age-related change in the nervous system that can adversely affect nutritional status is decreased taste perception, hearing loss and vision loss. Aging refers to a multidimensional process in humans, the process of physical, and psychological, and social changes. As a population, older adults are more prone to age-related diseases, functional impairment, and physical inability that nay interfere with the maintenance of a good nutritional status. 
        
             
        
        
        
Answer:
C, there is genetic variation within the population
Explanation:
 
        
             
        
        
        
Answer:
The suitable option will be - B
B) Phosphate and ADP form to make ATP which binds to the myosin head and causes cross-bridge to detach.
Explanation:
Until step 11, skeletal muscle has already done cross-bridge and power stroke. ADP is released just after the power stroke. After that phosphate and ADP form a new ATP which gets bound to the myosin head.  
Then at step 11, cross-bridge is released as a new ATP is bound to myosin head.  
So, we can say that option B is correct.
 
        
             
        
        
        
The fight or flight response is most likely because of stress as this response usually occurs or happens when an individual is experiencing stress and when he or she is likely exposed to stimulus that will result the person to feel stressed and worn out.
        
             
        
        
        
A stored form of carbohydrate in animals' muscle and liver is glycogen. 
Glycogen is a polysaccharide (starch) made of repeating units of glucoses bonded together.