Strictly speaking, a hominid is considered as a general term corresponding for Homo, Pan and Gorilla. If this pertains to the genus Homo (class Hominini), then we only have one species left called Homo sapiens (modern humans) which developed from the ancestors called Homo erectus or Neanderthals. However, hominid could also mean the gorillas and chimpanzees belonging to another genus called Pan (class Hominini) and Gorilla (class Gorillini), respectively.
        
                    
             
        
        
        
precipitation due to condensation 
 
        
             
        
        
        
Pepsin enzymes can then digest dietary proteins in the lumen of the stomach. Pepsin in a protease digesting the proteins into smaller peptides. It is produced by the chief cells of the stomach in the form of a proenzyme called pepsinogen. A proenzyme or a zymogen is basically inactive and needs a biochemical change to become an active enzyme. This biochemical change is brought about by the acidic environment of the stomach by the secretion of the hydrochloric acid by the parietal cells in the stomach lining. 
 
        
             
        
        
        
Answer: A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance. Examples of substances: Iron is an element and hence is also a substance.
Explanation: