The processor; otherwise it couldn't do any work.
Yes the CPU (aka microprocessor or Central Processing Unit) is the most important, but it is not necessarily the most expensive.
Oxygen A+
correctness
coordination is the most important component
Collagen fibres.
probably the latitude and the longitude
Leads
bones
Data integrity
A name server is the server component of the Domain Name System (DNS). DNS is one of the two main name spaces on the internet. The most important functions of these DNS servers is translating domain names and host names into corresponding numeric IP addresses.
A client.
The most important component is piperine.