Describe how the chromosome number of an organism would change if somatic cells joined together during fertilization to make a zygote for each new generation

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.