What are two forms of evidence for classifying living things

Living things take in and export products. And also libing things have a genetic code that is self replicating. But thats makes viruses weird, but there you go.

Two scientific processes deal with classifying and naming living things.
is the process of arranging organisms into groups based
on similarities. is the science of naming and classifying
organisms. Classification and taxonomy are related studies. A good
system of classification allows you to organize a large amount of
information so that it is easy to find and to understand. The system
should provide a tool for comparing very large groups of organisms as
well as smaller groups. Large groups might include all animals.
Smaller groups might include birds, reptiles, or mammals.

Can you be more specific