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Evidences for Evolution cs

These games cover the basic evidences for evolution from fossils to comparative cytology.

evolutionthe process of species changing over time
FossilAny trace or remains of an organism that has been preserved by natural processes.
AmberA hard, yellow, transparent material formed by the hardening of tree resin, in which insects become trapped.
IceAllows whole organisms to be preserved for thousands of years in cold Artic regions.
Fossil BonesUnder some conditions, the hard, mineral parts of animals such as shells, bones, and teeth can be preserved.
PetrificationThe process by which the remains of an organism turn to stone by replacing original substances with minerals from the water in which the organism dies.
MoldWhen the remains of an organism decay, but the shape is preserved in the rock as a hollow form.
CastWhen a mold fills with minerals and hardens into rock in the form of the original organism.
Comparative AnatomyThe study of structural similarities and differences among living things which may show an evolutionary relationship.
Homologous StructuresWhen parts of different organisms have similar structures that serve different functions (bat wing and human arm), they are said to share a common ancestor.
Vestigial StructuresRemnants of structures that were functional in ancestral forms, but in modern forms are smaller and serve no function.
Comparative EmbryologyThe longer 2 different species share similar embryonic forms, the closer the evolutionary link.
Comparative BiochemistryThe more similar 2 different species DNA is, or the proteins derived from the DNA, the closer the evolutionary link.

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