The process in which significant changes in the inheritable traits of a species occur over time.

Unchanged and unchanging to be characteristic of life forms.

Any preserved remains of traces of an organism or its activity; many fossils are of such hardened body parts

Permineralized Fossil

A fossil formed when dissolved minerals precipitate from a solution in the space occupied by the organism's remains.

The process by which traces of past organisms become part of sedimentary rock layers or, more rarely, tar pits, volcanic ash, peat bogs, or amber.

The scientific study of fossil remains.

Cuvier's theory that numerous global catastrophes in the past had repeatedly caused the extinction of species that were then replaced by newly created forms.

An estimate of the age of a rock or fossil specimen in relation to another specimen.

An estimate of the actual age of a rock or fossil specimen.

The release of subatomic articles from the nucleus of an atom, which results in the change of a radioactive parent isotope into a daughter isotope; when the number of protons is altered, a different element is formed.

Atoms with an unstable nuclear arrangement that undergo radioactive decay.

Changes into a daughter isotope as radioactive decay occurs.

What a parent isotope changes into during radioactive decay, may be stable or may be radioactive and capable of further decay.

The time required for half a radioactive material to undergo decay; for any given isotope the half-life is constant.

Calculation of the age of rock.

The theory that the same geological processes occuring in the present also occurred in the past.

The theory that Earth's surface has always changed and continues to change through similar, uniform, and very gradual processes.

Spontaneous Generation

The idea that living organisms arise from non-living matter.

Those changes in an individual resulting from interaction with the environment.

Structures that share a common origin but may serve different functions in modern species.

Structures similar in function but not in origin or anatomical structure.

Rudimentary and nonfunctioning structures that are homologous to full functioning structures in closely related species.

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Evolution #1

Origins of Evolutionary Science - Terms and Definitions

Term	Definition
Evolution	The process in which significant changes in the inheritable traits of a species occur over time.
Immutable	Unchanged and unchanging to be characteristic of life forms.
Fossils	Any preserved remains of traces of an organism or its activity; many fossils are of such hardened body parts
Permineralized Fossil	A fossil formed when dissolved minerals precipitate from a solution in the space occupied by the organism's remains.
Fossilization	The process by which traces of past organisms become part of sedimentary rock layers or, more rarely, tar pits, volcanic ash, peat bogs, or amber.
Palaeontology	The scientific study of fossil remains.
Catastrophism	Cuvier's theory that numerous global catastrophes in the past had repeatedly caused the extinction of species that were then replaced by newly created forms.
Relative Age	An estimate of the age of a rock or fossil specimen in relation to another specimen.
Absolute Age	An estimate of the actual age of a rock or fossil specimen.
Radioactive Decay	The release of subatomic articles from the nucleus of an atom, which results in the change of a radioactive parent isotope into a daughter isotope; when the number of protons is altered, a different element is formed.
Radioisotopes	Atoms with an unstable nuclear arrangement that undergo radioactive decay.
Parent Isotope	Changes into a daughter isotope as radioactive decay occurs.
Daughter Isotope	What a parent isotope changes into during radioactive decay, may be stable or may be radioactive and capable of further decay.
Half-Life	The time required for half a radioactive material to undergo decay; for any given isotope the half-life is constant.
Radiometric Dating	Calculation of the age of rock.
Actualism	The theory that the same geological processes occuring in the present also occurred in the past.
Uniformitarianism	The theory that Earth's surface has always changed and continues to change through similar, uniform, and very gradual processes.
Spontaneous Generation	The idea that living organisms arise from non-living matter.
Acquired Traits	Those changes in an individual resulting from interaction with the environment.
Homologous Features	Structures that share a common origin but may serve different functions in modern species.
Analogous Features	Structures similar in function but not in origin or anatomical structure.
Vestigial Features	Rudimentary and nonfunctioning structures that are homologous to full functioning structures in closely related species.

Created by: WisemanLeo

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