Science 7 Flashcards
Adaptation
The action of adapting to an area
species
A group of organisms consisting of similar individuals
Evolution
The change in the characteristics of a species over several generations.
Fossil
The remains of a prehistoric organism covered in dirt,soil,or sand.
Fossil Record
A collection of fossils documenting the history of life.
Trait
A quality or characteristic
Selective Breeding
Choosing parents with particular characteristics to breed together
Natural Selection
The process through which populations of living organisms adapt and change
Generation Time
The average period generally considered to be about 20-30 years
Speciation
An Evolutionary process in witch evolve and become distinct species
Relative Dating
Relative order of past events
Absolute Dating
The process of determining an age
Geologic Time Scale
It is organized with the oldest at the bottom and the youngest at the top
Extinct
Having no longer species that is in existence
Plate Tectonics
A theory that the Earth’s lithosphere has a big number of tectonic plates
