Reflexes may be coordinated by the brain or by the spinal cord. in reflexes co-ordinated by the brain, there are no relay neurones. suggest why there is a difference in the mean speed of the impulse for the two reflexes.

The difference is because there about different from one another, the reflexes will act different towards the speed

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.