DNA replication is semiconservative in the sense that is uses one old strand to create a new strand.
Thus, it conserves a strand to create a new item in a sense.
Hope this helps!
Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun. Electricity falls into its own category because it's an energy carrier and not a primary source.
C. is essential in the synthesis of dna and in the development of red blood cells.
Lymphedema is the condition I believe.