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Evolution

Across
variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
developed early proponent of the idea that evolution occurred and proceeded in accordance with natural laws
Scottish geologist, physician, chemical manufacturer, naturalist, and experimental agriculturalist.
the action or art of imitating someone or something, typically in order to entertain or ridicule.
Different species having the same function but have evolved separately, thus do not share common ancestor
An English cleric and scholar, influential in the fields of political economy and demography
Collection of evolutionary mechanisms, behaviors and physiological processes critical for speciation
A term used by paleontologists to refer to the total number of fossils that have been discovered, as well as to the information derived from them.
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in heritable traits of a population over time.
Intentional reproduction of individuals in a population that have desirable traits.
The disguising of military personnel, equipment, and installations by painting or covering them to make them blend in with their surroundings.
An organism that has lost all or most of its original function in the course of evolution, such as human appendixes.
Down
The condition of being physically fit and healthy.
the process whereby organisms not closely related , independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
Geologist and biologist, best known for his contributions to the science of evolution.
An example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor
the diversification of a group of organisms into forms filling different ecological niches.
The action or process of adapting or being adapted.
Evolution is change in the heritable characteristics of biological populations over successive generations