Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
- 3rd side (hint)
Fossil |
Remain or impressions of dead organisms
|
|
|
Organism |
Living things // plant & animals |
|
|
Cast fossil |
preserves the impression of the hard parts of an organism
|
|
|
Mold fossil |
Organism dies and is covered with sediments and a cavity is left |
|
|
Trace fossil |
footprints, tracks, burrows, borings, and feces left behind by animals
|
|
|
Persevered fossil |
prehistoric organism that have been preserved inside rock
|
|
|
Carbonated fossil |
fossil found in any rock when organic material is compressed |
|
|
Fossil record |
total number of fossils that have been discovered |
|
|
Diversity |
range of different things |
|
|
Relative age |
a close guess on how old something is |
|
|
absolute age |
the exact age of something |
|
|
index fossils |
fossil that can give you an accurate index on age |
|
|
laws of superposition |
the youngest layer is on top and the oldest on bottoms |
|
|
trilobites |
an example of an index fossil |
|
|
petrified fossil |
replacement of original material and filling of original with minerals. |
|
|
Geological time scale |
All of earths time |
|
|
Period |
2nd shortest measure of time |
|
|
Epoch |
Shortest measure of time |
|
|
Precambrian |
First super eno |
|
|
Paleozoic era |
Era of triblobites |
|
|
Mesozoic era |
Era of dinosaurs |
|
|
Cenozoic era |
Era where in now |
|
|
Quaternary period |
most recent 2.6 million years
|
|
|
Holocene epoch |
current geological epoch
|
|
|
Natural selection |
Survival of this fitness |
|
|
Adaptation |
Evolve to better suit environment |
|
|
Variation |
Difference |
|
|
Population |
One type of organism |
|
|
Species |
A specific type of organism |
|
|
Era |
Longest period of time |
|