"Each organism has its own identity".Explain

(a) “Each organism has its own identity”.Explain.
(b) What is speciation ?

(a) (i) The DNA of each organism is different from others.
(ii) The DNA of each organism is specific within the same species with specific number of chromosomes / genes.
(b) Emergence of new species from pre-existing forms through natural selection / artificial selection / genetic drift / evolution, etc