Hmm…I can’t say for sure because the are many ways to classify organisms. Example, we can classify animals become vertebrates and invertebrates (from their backbone) then from invertebrates we can classify them into protozoans, poriferas, coelenteratas, vermes, arthropodes..etc (from their body structure)
Well, from the examples above we can see that there are many ways to classify organisms because they have some common thing between each other and eanble us to make a classification for them.. 😉