| Question | Answer |
|---|---|
| the production of more complex tools, including hand axes, by H. erectus from 1.6 million to 200,000 years ago. | Acheulean tool industry |
| the period of time that precedes the emergence of the earliest early modern humans (Homo sapiens) around 300,000 years ago. | archaic Homo |
| a type of tool characteristic of the Acheulean tool industry, with both sides worked. | biface tools |
| a measurement defined as the ratio between brain and body size. | encephalization quotient |
| proposed group for which no fossil evidence has yet been found. | ghost population |
| genes traced through mitochondrial DNA that represent the female genetic originator of all humans who lived 200,000 years ago in Africa. | Mitochondrial Eve |
| the DNA located in the mitochondria that can be passed down unchanged from female genetic contributor to child. | mtDNA |
| “mitochondrial most recent common ancestor,” or Mitochondrial Eve, representing the common ancestor of H. sapiens around 200,000 years ago. | mtMRCA |
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