Answer:
Number of protons
Explanation:
Any particular element can always be identified by its number of protons.
 
        
             
        
        
        
<span>b.) organism and health</span>
        
                    
             
        
        
        
Answer:
c. to account for two major and distinct prokaryotic groups in addition to eukaryotes. 
Explanation:
Microbiologist Carl Woese compared the ribosomal RNA sequence of the small subunit of RNA. Various organisms have structurally different small subunit of the ribosomes. According to Woese the molecular composition of rRNA in closely related organisms should be more similar than in distantly related organisms. He analyzed the 16S rRNA of various organisms and observed that there are two distinct groups of prokaryotes. He divided the prokaryotes among two domains: Bacteria and Archaea. He placed all the eukaryotes in the domain Eukarya.
 
        
             
        
        
        
Answer:
Recent studies have examined the possibility that variation in species richness within communities may influence productivity leading to an exploration of the relative effect of alterations in species number per se as contrasted to the addition of productive species. 
Explanation:
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