Deoxyribonucleic Acid (DNA) {Ans: is a spiral-shaped molecule strands that contains all the biological information for a cell. We inherit our DNA from our parents, and with it, the genes that make up our DNA.}Paranthropus (robustus) {Ans: (South Africa): 1.8 - 1.5 million years, similar to A. boisei, but not quite as robust - possible southern variant. Robust early hominin, found in South Africa and dating to the period between 1.9 and 1.0 m.y.a.}Diffusion {Ans: Borrowing between cultures either directly or through intermediaries.}Mitosis {Ans: Ordinary cell division; DNA molecules copy themselves, creating two identical cells out of one.}Charles Lyell {Ans: Considered the father of geology, Lyell's work had a strong influence on Charles Darwin. He was a major proponent of the idea that the earth was shaped entirely by slow-moving forces still in operation today, acting over a very long period of time. He expanded upon the earlier work of Hutton.}Oldowan tools {Ans: Early (2.6-1.8 m.y.a.) stone tools; first discovered in 1931 by L. S. B. and Mary Leakey at Olduvai Gorge.}