3: It is the system that scientists use to name living organisms. It is beneficial to use this naming system because it is very precise and narrows it down to one specific organism. Another reason is because the roots used to make up one of the names can be compared to others, so you can see the relationship between two different organisms.
4: a) <span>Organisms once thought to be unrelated may be found to be related.
5: b) eliminating waste through the cell membrane.