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CHANGE OVER TIME

Horizontales
A permanent change in the sequence of DNA, or the nucleotides, in a gene or a chromosome.
Structural body part that has lots its original function through evolution.
The science of the development of embryos from fertilization to birth.
A piece of an older rock that becomes a part of a new rock.
The abbreviation for deoxyribonucleic acid, an organism's genetic material.
The study of similarities and differences among structures of different species.
A principle stating that geologic processes that occur today are similar to those that occurred in the past.
The principle that in undisturbed rock layers, the oldest rocks are on the bottom.
Record of all the fossils ever discovered on Earth.
The preserved remains or evidence of past living organisms.
An inherited trait that increases an organism's chance of surviving and reproducing in a particular environment.
Type of fossil that has characteristics of both ancestral organisms and organisms that evolved later.
Verticales
A slight difference in an inherited trait among individual members of a species.
The type of age of rocks and geologic features compared with other nearby rocks and features.
The process of copying a DNA molecule to make another DNA molecule.
The type of numerical age, in years, of a rock or object
Event that occurs when the last individual organism of a species dies.
An adaptation that enables a species to blend in with its environment
Surfaces where rock has eroded away, producing a break, or gap, in the rock record.
The selection and breeding of organisms for desired traits.
Structural body parts of organisms that are similar in structure and position, but different in function.