<span>In one sample, the potatoes that have more sugar will also have more water that will diffuse into them. Potatoes are hypertonic in relation to pure water,simply put, they will gain extra water weight as well as displace more water than potatoes that are lower in sugar. In a separate sample, potatoes that have a higher concentration of sugar will also lose far less water due to their lack of hypotonic nature. Those with lower sugar will easily loose more water.</span>
It is a wall that protects the plant cell.
Mutations result from an error in DNA replication, should it be from an alien source (like radiation) or simply a mistake in replication.
Migration of organisms to a new population would alter the DNA by adding new genes, but it would not mutate them.