1. Protein Coat 2. Nucleic Acid
 
        
             
        
        
        
With the kisspeptin actions of releasing in direct to GnRH, it is expected that the receptors of the kisspeptin will be found in the hypothalamus. The hypothalamus' function is to coordinate the activities of the other system in the body in order to respond to different stimuli and to provide actions where it is needed in a person's life.
        
             
        
        
        
A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a sequence of DNA or RNA. Point mutations have a variety of effects on the downstream protein product—consequences that are moderately predictable based upon the specifics of the mutation. 
Hope this helps
 
        
             
        
        
        
Answer:
The correct answer will be- ADH alters the reabsorption of water and RAAS leads to the reabsorption of sodium ions.
Explanation:
To maintain the osmolarity of the blood in the human body, the body activates the RAAS pathway and the production of ADH.
RAAS pathway gets activated when the receptors sense low blood pressure in the body. This activates the production of renin from the juxtaglomerular cells of the body which converts the angiotensin to angiotensin I and later angiotensin II. 
This allows the reabsorption of sodium ions in the blood through proximal and distal tubules in the nephron.  This activates the synthesis of aldosterone which increase the permeability to sodium ions.
The Antidiuretic hormone helps regulate the low blood pressure by adding aquaporins to the distal tubule membrane which help absorb the water.
Thus, ADH alters the reabsorption of water and RAAS leads to the reabsorption of sodium ions is the correct 
 
        
             
        
        
        
Answer:
Hydrogen and part oxygen 
Explanation:
Water is composed of these two which makes the symbol H20