Evolution Flashcards
uses the decay of radioactive isotopes is a form of element
Radiometric dating
method used to determine the age
Relative dating
amount of time it takes the isotopes to decay
Half-life
smallest unit of geologic time
Epochs
are divisions of geologic time lasting to millions of years
Periods
unit of geologic time that time consisting of more periods
Era
referred to selective breeding
Artificial selection
struggle for existance
Natural selection
cumulative changes of time
evolution
life arises from nonlife
spontaneous generation
body parts are more modified to ancestrialparts
Homologous structure
structures that are reduced forms of functional structures
Vestigial structure
construction that is not inherited from an ancester
Analogous
a measure of relative contribution an individual trait
Fitness
adjustment or change
adaptation
