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Change Over Time Voc

QuestionAnswer
Species A group of similar organisms that can breed and produce fertile offspring.
Evolution The process by which different kinds of living organisms developed and diversified from earlier forms during the history of the earth.
Fossil The preserved remains or traces of an ancient organism.
Adaptation An inherited characteristic that increases an organism's chance of survival and reproduction in its environment.
Scientific theory A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.
Natural selection The process where organisms better adapted to their environment tend to survive and produce more offspring.
Competition The struggle between organisms to survive in a habitat with limited resources.
Sexual selection Natural selection arising through preference by one sex for certain characteristics in individuals of the other sex.
Coevolution The process of reciprocal evolutionary change that occurs between pairs of species or among groups of species as they interact with one another.
Fossil record The total number of fossils that have been discovered, as well as the information derived from them.
Embryo An unborn or unhatched offspring in the process of development.
Homologous structures An unborn or unhatched offspring in the process of development.
Extinct Organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor.
Vestigial organs Having no living members; no longer in existence.
Molecular clock A structure in an organism that has lost all or most of its original function through the course of evolution.
Relative dating A technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged.
Absolute dating The process of determining an age on a specified chronology in archaeology and geology (e.g., using carbon-14 or potassium-argon).
Created by: user-2020284
 

 



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