What was the basis of early classifications? (AS11)

The basis of early classification was:

i. Living things are classified on the basis of their body structures.

ii. Living things are classified on the basis of dissimilarities and similarities.

iii. Charaka and sushruta had classified on the basis of their medical importance.

iv. Parashar classified plant basing on the structure of flowers.

v. Aristotle classified animals according to whether they lived on land, in water, or in the air.