The building block of DNA is called the nucleotide, which is composed of a nitrogenous base (adenine, guanine, cytosine, or thymine), a five-carbon sugar (deoxyribose in DNA), â¦ and one to three phosphate groups.+ 16 others found this useful. Kenneth Huynh.he building block of DNA is called the nucleotide, which is composed of a nitrogenous base (adenine, guanine, cytosine, or thymine), a five-carbon sugar (deoxyribose in DNA), â¦ and one to three phosphate groups. + 16 others found this useful. Kenneth Huynh.
So, to answer your question - yes, they are different. localhost is given an ip address in the 127.0.0.0 network and given to a virtual loopback network device lo. This device is present on all systems, regardless of whether they have a physical network device fitted (WiFi or Ethernet, for example).
Perhaps asking about the IP address of the local host (not localhost) would explain better. Though hosts don't have addresses. Interfaces have addresses, and possibly more than one (possibly more than two in IPv6). â Alexios Jul 3 '12 at 7:58.