CELL THEORY:1)All living things are composed of cells.
2)all cells arise from pre-existing cells.
3)all cells are structural and functional units of living things.
gene:it is the molecular unit of heredity of a living organism.
it is formed inside the nucleus.
it carries the instruction for a specific function.
Diffusion is a type of passive transport in an out of the cell.
Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane.