ABSTRACT
Life is the ultimate example of a complex dynamical system. A living organism develops through a sequence of interlocking transformations involving an immense number of components which are themselves made up of molecular subsystems. Cells are the key building blocks of living systems. Two major types of cells are prokaryotic and eukaryotic cells. Most of the cell's deoxyribonucleic acid (DNA) is housed within the nucleus which is protected by the nuclear envelope. DNA and Ribonucleic acid (RNA) are thought to be messengers of biological information and so are hormones and various signaling molecules. Artificial life, or a-life, is a discipline within the general area of computer science devoted to the creation and study of lifelike organisms and systems built by humans. One of the most important functions of a conscious system such as the human brain is the build-up and recall of memories.
