Gene mutations can be passed on to future generations and drive natural selection. ... Gene mutations can be helpful, harmful, or neutral for an organism's survival. Only mutations that are helpful in the organism's environment would influence its survival and reproduction
Answer:
4.Cell wall protects the cell whiles organelles are found in the cell itself which is having the cell wall
You would try to study the nucleus and the organelles of the organism to classify it
Because there are too many sex chromosomes I think
They break down sugar molecules to provide energy for the cell.
Good luck! :)