Question

what are the major characteristics considered for classifying all organisms

Answer 1

A eukaryotic cell has to be determined at first. It has membrane-bound organelles that absolutely include a nucleus.

Seeing if the cells occur in singular number of they are actually grouped together. This helps to realize if they are single celled.

If or not the organisms produce food through photosynthesis?

If these are plants then what is the organisation of their body?

In the animals what are the various stages of organization and development?