Cell membrane: a thin flexible Barrier that surrounds a cell and controls which substances pass into and out if a cell
Cell wall: a ridged supporting layer that surrounds the cells of plants and other organisms
Organelle: a tiny cell structure that carries out a specific function within the cell
Tissue: type of structure material
Unicellular: made of single cell
Multicellular: consisting of many cells
Autotroph: an organism that is able to capture energy from sunlight or chemicals and use it produce it's own food.
Heterotroph: an organism that cannot make it's own food and gets food by consuming other living things.
Prokaryotic: A unicellular organism that lacks nucleus and some other cells
Eukaryotic: an organism with cells that contains nucleus.
cell: The basic unit of organizing and function in living things
Organ: a collection of different tissues joined in structural unit to serve a common function