The answer is c because boy have the same rock layer you can use they key to help you
        
             
        
        
        
The correct option is (D) Nucleotide variability and average heterozygosity 
The higher the proportion of loci that are "fixed" in a population, the lower are that population's nucleotide variability and average heterozygosity.
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What does it indicate when a gene in a population is fixed?</h3>
- In population genetics, fixation is the transformation of a gene pool from one in which at least two alleles of a certain gene exist in a given population to one in which only one allele persists. 
- Any allele must eventually be lost entirely from the population or fixed (permanently established at 100% frequency in the population) in the absence of mutation or the heterozygote advantage. 
- Selection coefficients and random variations in allelic proportions determine whether a gene will ultimately be lost or fixed. Fixation may relate to a specific nucleotide location in the DNA chain or a gene in general (locus).
Learn more about the Nucleotide variability with the help of the given link:
brainly.com/question/9363472
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The true statements are: 1, 3, 4, 5, and 6
 
        
             
        
        
        
Answer: True
Explanation: They need to replicate their DNA so the daughter cells hold the same genetic information when the parent cell divides
 
        
                    
             
        
        
        
The three primary purposes that advertising objectives can be classified by area; To inform; this is in the case of a new product where the company needs to inform the customers and create awareness on the existence of a new product. Secondly; To persuade; once you are in a competitive environment there is need to persuade the customers to buy your product. Lastly, To remind; this is especially important for a mature brand.