A commodity that someone would invest in would be tea, coffee, and wine. Some of the more popular items people usually think of as a commodity.
 
        
                    
             
        
        
        
Answer: a. Blood and mucus in the stools.
Explanation:
Diarrhea is a gastrointestinal problem. It is associated with the symptoms of loose stools, cramps, vomiting, fatigue, and stomach pain. The diarrhea usually last for few days to week. It is also associated with the signs of dehydration due to loss of fluid through loose stools like stretchiness in skin, loss of color of skin, and fast heart rate. The diagnostics of diarrhea can be done by examining the blood and mucus in the stool.   
 
 
        
             
        
        
        
The actually speed of sound in water is 1,498, which is closest to 1,500 meters per second.
-Steel jelly
 
        
                    
             
        
        
        
I don't see the Venn Diagram but in Cellular respiration there are 3 Cycles. Glycolysis, Krebs Cycle, and ETC (Electron Transport Chain) Glycolysis does NOT require Oxygen (Anaerobic) and Krebs and ETC require Oxygen (Aerobic). Hope this helps!