6:1 Ratio means that it is easier to move the materials. SA = ^2, while V = ^3. That means volume increases at a faster rate than surface area. That is why is it optimal to have a high SA:V ratio, which is why cells are so small.
<span>This would be called an aura. An aura is simply some sort of disturbance that is experienced by people who have migraines or seizures. It is something they sense, see or smell prior to the headache or seizure beginning. Sometimes it is a strange light or a foul odor, sometimes it can even be confusing thoughts. Generally, those who experience auras will have the same aura each time.</span>
A Multi-Celled organism has many cells (more than one). Examples would be plants, humans and animals/mammals.
A Single-Celled organism only has one cell that makes up it's entire self. Examples would be bacteria and archaea.
