Answer:
2, 3 and 4 only.
Explanation:
Mutations refer to change in genetic content or alterations of DNA which might be as a result when the DNA is copied or due to environmental factors like Ultraviolet radiation.
Majority of mutations have neither positive or negative effects on organisms the occur and they are called neutral mutations.
An example is silent points mutations which does not alter the amino acids it's encode.
Some Mutations have positive effects and some have negative effects which cause genetic disorder.
 
        
             
        
        
        
Answer:
Eubacteria are prokaryotic organisms, as characterized by the lack of a membrane-enclosed nucleus, predominantly unicellular, with DNA in a single circular chromosome, and have peptidoglycan on cell wall when present. They include most of the familiar bacteria of medical and economic importance such as E.
Explanation:
 
        
             
        
        
        
Answer:
Inherited genes and behaviors such as an unhealthy diet
Explanation:
I know this because its caused by family background and diabetes.
 
        
             
        
        
        
Humans have always interbread with other groups and tribes, but grazing animals don't do that, so It is much easier to estimate it.