The food is digested to amino acid, glucose, fatty acid and
glycerol which are absorbed in small intestine.
} These all substances are needed in all living cells in body
such as brain cells, leg muscle and kidney cells.
} The substances are carried from intestine to other part
of the body by blood stream.
} Oxygen taken in by lung is needed by all cells and is
carried around the body in blood.
Plants : waxy leaf covering, seasonal leaf loss
Animals : migrate in dry season, some smaller animal burrow and dormant during dry seaso