Answer:
3 1 2
Explanation:
simple organisms apeared first insects would be less complicated than fish the came sharks as they are more complex organisms also insects were first to be food for fish and fish food for sharks
 
        
             
        
        
        
Answer:
transformation, DNA, RNA
NOTE: 1 is wrong but I don't know which cause the test doesn't give us the correct answers after taking it
it's in that order
Explanation:
i literally just took the test
 
        
             
        
        
        
Answer:
The correct option is: b. in the different genes
Explanation:
In an organism, complementation is observed when the two strains with the different homozygous recessive mutations are mated or crossed to produce an offspring having wild-type phenotype.
<u>Complementation is observed when the mutations are present in different genes.</u>
<u>Therefore, mutations are said to be</u><u> complementary, </u><u>if they are present in different genes.</u>