Q 1. Which do you think is a more basic characteristic for classifying organisms?
(a) the place where they live.
(b) the kind of cells they are made of. Why?
The basic characteristic for all living organisms is (b) the kind of cells they are made up of because:
A eukaryotic cell has membrane-bound organelles, including a nucleus, which allows cellular processes to be carried out efficiently in isolation from each other. Organisms that do not have a nucleus would need to have their biochemical pathways organized in very different ways. This would have an effect on the cell design. Further, nucleated cells would have the capacity to participate in making a multicellular organism because they can take up specialized functions.
Therefore, the nucleus can be a basic characteristic of classification.
A eukaryotic cell has membrane-bound organelles, including a nucleus, which allows cellular processes to be carried out efficiently in isolation from each other. Organisms that do not have a nucleus would need to have their biochemical pathways organized in very different ways. This would have an effect on the cell design. Further, nucleated cells would have the capacity to participate in making a multicellular organism because they can take up specialized functions.