Evidence of Evolving Flashcards
What is some evidence of evolution?
fossils, radioactive dating, law of superpostition, and fossil records
radioactive dating
it is a good way used to figure out how old something is
Law of superposition
in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom
fossil records
it is used to refer to the total number of fossils that have been discovered, as well as to the information derived from them
homologous structure
an example of an organ or bone that appears in different animals
analogous structure
body parts in different species that are similar in function but not in structure
adaptations
changes that increase an organism’s chance of survival
natural selection
survival and reproduction of those organisms best adapted to their suuroundings