Identification and classification of living things

• In studies of evolution it is essential to be able to identify and classify living things. Traditionally living things have been classified into groups depending on their structure and characteristics.
• Organisms are named by the binomial system of genus and species.
• As evidence of internal structures became more developed due to improvements in microscopes and progress with the understanding of biochemical processes, new models of classification have been proposed.
• Modern classifications systems are based on theories about evolution developed from analysis of differences in DNA molecules.