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| Variation in the relative frequency of different genotypes in a small population, owing to the chance disapperance of particular genes as individuals die or do not reproduce |
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| A want to change a physical trait in order to strive in a specific environment |
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| The starting point of a specific species, these species are capable of exchanging genes with one another |
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| The production of offspring by a sexual or asexual process |
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| The science that deals with the earth's physical structure and substance, its history, and the processes that act on it |
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| Preserved remains or evidence of an ancient organism |
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| A species of Finches discovered by Darwin that all come from the same ancestor, but adapted to suit their specific environment and or diet |
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| The branch of Biology concerned with the study of embryos and their development |
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| Process in which two cells, normallyfrom different individuals, unite to produce the first cell of a new organism |
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| Process in which a single organism produces a new organism or organisms identical to itself |
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| Change in the number or structure of chromosomes in a cell |
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| Change involving the nucleotides of DNA |
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| Similar bone stuctures in different animals show similarity and fossils that are found to be related to species of today through Biochemistry |
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| Sructure that serves no useful purpose or function in an oganism |
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