It serves as energy for the body the cells it helps carry out nerve ceel conduction muscle cell contraction, active transport and the production of chemical substances.
This is an example of CONDOMINANCY.
Condominancy is said to occur when two different alleles are combined together to form a different allele, in which the alleles are expressed equally and none of them is dominant. In the example given above, the black rat population mated with the white rat population to produce offspring that are grey in colour. Thus, the white and the black colour of the parents are not dominant, but are equally expressed to give gray colour.
Answer:
During diffusion, molecules move from areas of
⇒ high concentration to areas of
⇒ low concentration.
Diffusion does not require
⇒ energy to move molecules.
