YES.The distribution of bases in sea urchin DNA and salmon DNA follow Chargaff's rules because the percentage of A bases is approximately equal to the percentage of T bases, and also the percentage of G bases is approximately equals to the percentage of C bases in both species. According to Chargaff's rule the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. 
        
             
        
        
        
The answer is all of the above
        
             
        
        
        
Answer:
B. The population must be very large.
Explanation:
 
        
             
        
        
        
Two types of crust, the <span>thin oceanic crust that underlies the ocean basins, and the</span> continental crust that underlies the continents, which is thicker than the thin oceanic crust.
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Answer:
If distinct biological species are to coexist in sympatry, they must be reproductively isolated and must exploit different limiting resources.
Explanation: