Answer:
Heart disease and bulimia, and anorexia
Explanation:
Examine how poor fitness, stress levels and diet can affect the human circulatory and digestive systems; e.g., by causing: ulcers and acid reflex disease. eating disorders; e.g., anorexia, bulimia, high blood pressure and heart disease.
 
        
             
        
        
        
Answer:
The Sun *emits* white light, which is actually a composite of all of the visible frequencies of light. (A prism shows you the visible frequencies of white light.) The distribution of solar frequencies is uneven, the most intense frequency is in the yellow-green part of the spectrum.
 
        
             
        
        
        
Answer:
Proximal convoluted tubule
Explanation:
The major work of re-absorption is carried out in nephron by the proximal convoluted tubule (PCT). The PCT re-absorbs all the essential nutrients such as amino acid, potassium, glucose etc. and water driven by passive transfer based on concentration gradient. Along with gradient, pH of the urine also affects the re-absorption. Based on the pH of the urine (basic or acid), re-absorption of ionized acid increases or decreases.  
 
        
             
        
        
        
Answer:
They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.