What is adaptation, and how does adaptation relate to natural selection?

the process of being adjusted in any environment is called adaptation.

adaptation is related to natural selection as it has described that those organisms which are fittest only can reproduce and continue their generations . so if the organisms can adapt themself and can be fitted then they van evolve themselves.

this transfer is call conjunction

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).