Answer:
The one with A is 35%
Explanation:
there is usually a 50 50 of cg and at so a would add with 15% to make 50%
 
        
             
        
        
        
<span>The correct answer is a. the overuse of fertilizer lead to reduced crop yields over time. This was unexpected because it is common for fertilizers to increase the yields and the quality of the product, but what happens over time is the opposite so it can be said that it's an unexpected consequence.</span>
        
                    
             
        
        
        
Answer:
given, mother and father are heterozygotes.
let, father has B blood group and mother has A blood group.
then their heterozygous  genotypes are --
father = iB, iO  and mother = iA, iO
punnett square will be,
          iB        iO
iA     iA iB     iA iO
iO     iB iO    iO iO
the genotypes of their progeny will be, iAiB ,  iAiO ,iBiO and iOiO
and phenotypes will be 3 are heterozygous and 1 is homozygous.
 
        
             
        
        
        
C) water and energy ATP
The end products of respiration.
        
                    
             
        
        
        
Answer:
False
Explanation:
Introns need to be removed precisely because the reading frame will be shifted if removed even single nucleotide too many or leaving an intronic nucleotide in the spliced mRNA .
Extra amino acids will be inserted if large pieces of introns are left in the mature messenger RNA.
In both cases, aberrant protien will be produced if the RNA splicing is not precise, hence they are needed to be removed by precision.