I just did this BTW. The correct answer is A.) Nuclear fusion is the correct answer. Nuclear fission is what we use today in nuclear power plants, a great deal of radioactive waste, the other are by products of this process. Nuclear fusion releases a great deal of energy with a little radioactivity, but the problem is ignition temperatures; but maybe someday.
 
        
             
        
        
        
The answer will be A because mitosis usually separate the sister chromatids to sister chromosomes to form two diploid cells. In meiosis, the goal is to have four haploid cells. To form that, cells need to undergo cell division two times. In the case of meiosis I, sister chromatids stay joined together until it reaches meiosis II. Then, the sister chromatids will separate starting at anaphase II in meiosis II. For example, if you start with 92 chromosomes (46 chromatids) during meiosis I, at meiosis II you will have two cells with 46 chromosomes (23 chromatids). By the end of meiosis II, you should form 4 haploid cells that contains 23 chromosomes.
        
             
        
        
        
Glucose,  amino acids, lipids and glycerol.
Explanation:
Carbohydrate is broken into glucose molecules
protein is  broken into amino acids
Lipid is broken into fatty acids and glycerol.
Starch present in the food is broken to glucose molecules to yield energy.
Protein is digested in stomach by the action of pepsin, trypsin and chymotrypsin. 
Glycosidic bonds of starch is broken down by salivary and pancreatic amylase enzyme.
fat is acted upon by lipase enzymes from pancreatic and intestinal juices.
these are broken into smaller units so that gets absorbed by blood and carries throughout the body.
 
        
             
        
        
        
 A Fragment of strand of nucleic acids isolated from silk moth species containes the base sequence CAGACT. these strands form DNA.