All terms in this list:

organism: A discrete and complete living thing, such as animal, plant, fungus or microorganism.

cytoplasm: The contents of a cell except for the nucleus. It includes cytosol, organelles, vesicles, and the cytoskeleton.

cuneiform: An ancient Mesopotamian writing system, adapted within several language families, originating as pictograms in Sumer around the 30th century BC, evolving into more abstract and characteristic wedge shapes formed by a blunt reed stylus on clay tablets.

lipid: Any of a group of organic compounds including the fats, oils, waxes, sterols, and triglycerides. Lipids are characterized by being insoluble in water, and account for most of the fat present in the human body. They are, however, soluble in nonpolar organi

protein: One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (ie: meat) and some vegetables, such as legumes. see carbohydrate and fat for the other two major classes

molecule: The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; a group of atoms held together by chemical bonds.

carbohydrate: A sugar, starch, or cellulose that is a food source of energy for an animal or plant; a saccharide.

nucleic acid: Any acidic, chainlike biological macromolecule consisting of multiply repeat units of phosphoric acid, sugar and purine and pyrimidine bases; they are involved in the preservation, replication and expression of hereditary information in every living cell

multicellular: That has many cells, often differentiated in function.

ziggurat: A temple tower of the ancient Mesopotamian valley, having the form of a terraced pyramid of successively receding stories.