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earlyearth
evolution notes
| Question | Answer |
|---|---|
| The Earth is Roughly how old in years? | 4 to 4.5 Billion years |
| Man is estimated to have been on earth for how many years? | 250,000 Years. |
| What do scientists use to determine "age" of each layer of earth as they examine? | Radioactive dating |
| In early earths years there was no Oxygen in the air, the 1st cells on this planet were | Anaerobic |
| The 1st cells were _________ not eukaryotic? | Prokaryotic |
| What kind of cells are smaller, simple, older no membrane-bound organelles? | Prokaryotic cells |
| What kind of cells are larger, more complex, younger, lots of organneles? | Eukaryotic |
| This type of fossil is a trace of a long dead organism? | MOLD |
| This type of fossil is a mold that is filled with minerals and is a "3D structure". | CAST |
| In 1668 this scientist said fossils were the remains of animals & plants that were once alive. | Robert Hooke |
| In 1669 he came up with the Law of Superposition | Nicolaus Steno |
| The Law of Superposition states | lowest layer of Earth is oldest top layer of Earth is newest Fossils in same layer roughly same age |
| This age is not an actual age, it is just wheather 1 fossil is older or younger than fossil than another fossil. | Relative Age |
| This is an actual age of the fossil, estimated by radiological evidence | ABSOLUTE AGE |
| What is the CHANGE in species over time | EVOLUTION |
| What is a SPECIES? | 1 type of organism that can reproduce fertile off spring and reproduce. |
| The scientist who used fossil evidence to declare similar species come from a common ancestor | Jean Baptiste de Lamarack (1744-1829) |
| These traits are not determined by genes (DNA) | ACQUIRED TRAITS |
| We know that your TRAITS are determined by | DNA / genes |
| The scientist who developed the hypothesis of Natural selection aka Survival of the fittest. | Charles Darwin (1809-1882) |
| The organism that is best suited to their environment is the one that will reproduce more successfully than others so their genes and DNA are passed on is known as? | NATURAL SELECTION |
| The Boat that Darwin traveled the world to research different lands? | HMS BEAGLE |
| The island where he found incredible rare species? | Galapagos Islands |
| DARWIN felt this may affect the population of an organism | ENVIRONMENT |
| If a species becomes better suited for its environment, then it will be more likely to survive than other species that cannot. | ADAPTION |
| Similar structures that come from common ancestor? | HOMOLOGOUS STRUCTURES |
Created by:
Mr. O
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