natural selection Flashcards
adaption
a characteristic that improves an individuals ability to survive and reproduce in particular environments
species
a group of organisms that are closely related and can mate or reproduce fertile offspring
evolution
a process in witch inherited characteristic within population change over a generation such ha new species sometimes arise
fossil
remained of or physical evidence of an organism preserved by geological processes
fossil record
a historical sequences of life indicates by fossils found in layers of the Earths crust
trait
a genetically determined characteristic
selective breeding
the human practice of breeding animals or plants that have certain desires characteristic
natural selection
the process with individuals that are better adapted o heir environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution
generation time
the period between birth of one generation and he birth of of the next generation
speciation
the formation of new and distinct species in the course of evolution.
relative dating
the science of determining the relative order of past events
Absolute Dating
the process of determining an age on a specified chronology
Geologic Time Scale
a system of chronological dating that relates geological strata
Extinct
having no living members
Plate Tectonics
a theory explaining the structure of the earth’s crust
