Answer:
■Gene sequences would be used to make Probes for both the Southern and Northern blots.
■The probes will be used to view the presence of each gene with the use of isolated genomic DNA obtained from the isolated bacterium
■Each probes hybridized to the genome shows the pathway is isolated and point of the genes were involved in the substrate catabolism
■The carbon source in the isolate is derived from the substrate inducing the catabolic pathway as RNA determine transcripts present
■Probes hybridizing to the same sequences would be used to determine the gene activity for the pathway as seen in the southern one
■since all the genes present in the genome couldn't be identified, the northern would be important to work on 
■Catabolic pathway is determined by the same genes. Hence, the need for gene/transcript probes to hybridize to the transcriptome.
 
        
             
        
        
        
Hardy and Weinberg’s work determining how allele frequency changes (C)
        
                    
             
        
        
        
Mining and Erosion are  basically the two main techniques <span>that are used for these fossils to become exposed.
Mining is  the extraction of minerals .
whereas 
Erosion is reaction of the surface processes 
hope it helps</span>
        
             
        
        
        
Answer:# 1 is salt #2 is fresh #3 fresh #4 salty 
Explanation:
 
        
             
        
        
        
The primary and most significant greenhouse gas emitted from human activities is carbon dioxide. Burning of fossil fuels is the major cause of increased carbon dioxide emission.The burning of coal, oil, and natural gas is an important energy source to produce electricity.