It weakens the immune system making it unable to defend itself against viruses and it also attacks the immune system..
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The nutrient is phosphorus
<h3>The phosphorus cycle</h3>
Phosphorus cycles between living components of the earth (biosphere) and the soil (geosphere).
The element's reservoir is mainly the sediments of the ocean and rocks. Phosphorus gets into the soil by weathering of rocks.
Plants are able to pick the element up from the soil and animals are able to get their phosphorus by consuming plants.
When plants and animal die, their body decomposes and the phosphorus in them enters the soil. 
Thus, the cycle being referred to in the illustration is the phosphorus cycle. 
More on phosphorus cycle can be found here: brainly.com/question/15020567
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Thirty-eight because the chromosome pairs are 19 and therefore, no. of chromosome will be 38. 
        
                    
             
        
        
        
The name of the enzyme present on the mitochondrial membrane, that allows hydrogen ions to flow through to provide the energy to phosphorylate ADP to form ATP is ATP Synthase.
        
             
        
        
        
Answer: I thinks it’s true. 
Explanation: