Evolution Set 1
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Created by:
DRHS_Biology Plus on March 29, 2011
Description:
The Origin of Evolutionary thought, Relative Age Dating, Absolute Age Dating, and Embryology
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30 terms
Terms | Definitions |
|---|---|
 Hutton | Who was the scientist who stated the earth is shaped by geological forces that took place over extremely long periods of time |
| Hutton | Who was the scientist who estimated that the earth was millions of years old |
| Lamarck | Who was the scientist who suggested the selective use or disuse of organs would cause an organism to acquire or lose certain traits during their lifetime. The organism would then be able to pass that trait on to their offspring |
| Darwin | Who was the scientist who suggested the theory of Natural Selection |
| Darwin | Who was the scientist who suggested that the process by which those organisms best suited to their environment will survive and reproduce |
| Wallace | Who was the scientist who wrote to Darwin speculating on evolution by natural selection based on his studies of the distribution of plants and animals |
| evolution | What is a change in a population over time |
| evolution | What is the process by which modern organisms have descended from ancient organism |
| theory | What is a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena |
| fossil | What are the remains of organisms or their imprints that have been preserved by natural processes |
| fossilization | What is the process of converting or being converted into a fossil |
| fossil record | What is the record in which information about past organisms that is stored in fossils |
| paleontologist | Who is a scientist who studies ancient life through the fossil record |
| gaps in the fossil record | When conditions for fossilization are not present such as if an organisms is soft bodied (jellyfish), or when there is extensive erosion that takes place, there may be what? |
| fossils are formed | Many organisms die and settle into sediment at the bottom of a body of water. The sediment and organisms remains are compressed into rock by pressure of water this explains how _________ _________ ________ |
| relative age dating | What type of dating places events in their proper order or sequence without knowing their absolute age in years |
| law of superposition | This law states that younger rocks are deposited on top of older rocks |
| Darwin | Who stated that giraffes born with longer necks (possibly by mutation) could reach the food above the shorter-necked giraffes, therefore survived and passed on that trait to their offspring. This is an example of what scientists theory |
| Lamarck | Who stated that giraffes grow long necks to reach the food higher in trees is an example of what scientists theory (not considered to be true) |
| absolute age dating | This type of dating can determine the age of a fossil by determined by analyzing the elements it contains |
| radioactive decay | When atoms give off particles and energy and change identity to become non-radioactive this is known as what? |
| half-life | What is the time required for half of the atoms of a radioactive substance to decay? |
| embryology | What is the study of the formation, early growth, and development of living organisms? |
| 5,700 years | What is the half life of Carbon 14? |
| 17,100 years | How long would it take a fossil that had 1,000 grams of carbon to have only 125 grams of carbon? |
| homologous body structure | What structure looks and functions differently, but come from the same part of the embryo (ex. arm, wing, and fin)? |
| homologous body structure | What structures develop from the same embryonic tissue, but change into different useful forms in the adult (wings, arm, and fin)? |
| analogous body structure | What structure is similar in purpose; ex. bird, bat, and insect wings are all used for flight? |
| vestigial organs | This is a structure with no useful purpose that has changed or been lost as the organism adapts to new environments, what is it? |
| vestigial organs | A human tail bone, appendix, tonsils, snake limb bone, and a whale's pelvic bone are all examples of what? |
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