The scientific method is something you probably use in your life more often than you realize, often without even thinking of it.
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What is role of science in daily life?</h3>
Science has day to day contribution in our life. It is involved in breathing, exhaling, brushing of teeth, cooking, bathing etc. It developed the standard of livings.
Fasting is the very beneficial health practice followed from ancient times.In  india, it is also consider as relegious practice from ancient times and they scientifically proved good for health.
I will choose fasting as it improve overall fitness, blood sugar management, improve immunity and detoxify the body.By doing so, my health get improved and my body get detoxify naturally.
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B is forsure the right answer !!!!
        
                    
             
        
        
        
Ans. 
Sickle-cell disorder is a genetic disorder, which shows defected red blood cells, due to mutation in the genes for hemoglobin protein.
Malaria is common in sub-Saharan Africa region and there, natural selection favored gene for sickle cells, because it might be beneficial to people having sickle cell disease that makes them able to survive in such condition and transmit their genes to offspring. 
On the other hand, in those Africans, who moved to United States, where malaria is uncommon or absent, natural selection favored normal, wild type genes, resulting in fewer people with defected sickle cell. 
Hence,  sub-Saharan African population shows higher percentage of mutated gene for sickle cell as compared to population of United States. 
Thus, the evolutionary process behind this difference is 'natural selection.' 
 
        
             
        
        
        
They convert glucose into usable energy.