Terms in this set (20)
Any trace or physical evidence of a once living thing.
Term simply means "change over time."
The change in organisms or species over time.
The changing of the Earth over time.
The process of humans breeding organisms with specific traits in order to produce offspring with those same traits.
Structures that do not have a common evolutionary origin (structurally different) but are similar in function.
Structures with common evolutionary origins; structure is similar on the inside, but may be different on the outside.
Structural adaptation evolved in some species where one species resembles another; may provide protection from predators or other advantages.
The process by which organisms with favorable traits in a particular environment survive better to reproductive age... then pass these favorable traits to the next generation.
Body structure that has a reduced (or no) function in a present-day organism... but was probably useful to an ancestor.
Early African hominid, that had both apelike and humanlike qualities... one of the first primates to show human traits.
Ability to walk on two legs; leaves arms and hands free for other activities.
Modern form of Homo sapiens that spread throughout Europe between 35,000- 40,000 years ago; were identical to modern humans in height, skull, and tooth structure, and brain size.
Group of primates that exhibit key human traits.
Group of early Homo sapiens that lived from 40,000 to 200,000 years ago in Europe, Asia, and Middle East; had thick bones and large faces with prominent noses and brains at least as large as those of modern humans.
The process by which minerals in water replaces the organic matter in organisms; forms a rock hard copy of the organism.
Estimating the age of a fossil based upon the layer of sedimentary rock they are in.
Also known as radioactive dating; the dating of fossils (or rock layers) based upon the proportion of the "parent" element and the "daughter" element it has decayed into.
The branch of science that studies fossils with human traits.
Geological Time Scale
A chart or table showing the progression of life by time period (eras and periods); associated with rocks layers that have been dates by relative and radiometric dating.