Final Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Fossils | Include footprints, eggs, or other traces of organisms. From in sedimentary rock.
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| Six components of Earth's early atmosphere | hydroggen cyanide, carbon dioxide, carbon monoxide, nitrogen, hydrogen sulfide, and water.
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| Liquid water first appeared on earth when? | 3.8 billion years ago.
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| Miller and Urey's expirements | Suggested how mixtures of the organic compounds necessary for life could have arisen from simpler compounds present on a primitive Earth. Amino acids were formed after gasses in Earth's atmosphere were passed through with electric sparks.
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| Macroevolution | large-scale evolutionary changes hat take place over long periods of time. Includes mass extinctions, adaptive radiation, convergent evolution, coevolution, punctuated quilibrium, and changes in developmental genes.
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| Mass Extinctions | when huge numbers of species disappear.
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| Adaptive Radiation | when a single species or small group of species evolves into several different forms that live in different ways. Many species evolve from one
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| Convergent evolution | unrelated organisms come to resemble one another because of similar adaptions to similar conditions
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| Coevolution | Two species evolve in response to changes in each other.
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| Punctuated Equilibrium | there are long, stable periods interrupted by brief periods of rapid change.
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| Relative Dating | age of a fossil is determined by comparing its placement with that of fossils in other layers of rock or index fossils.Allows paleontologists to estimate a fossil's age compared with that of other fossils.
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| Radioactive dating | use of half-lives to determine the age of a sample. Scientists calculate the age of a sample based on the amt. of remaining radioactive isotopes it contains.
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| Half-life | length of time required for half of the radioactive atoms in a sample to decay.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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