Crossword Puzzle Evolution TerminologyOnline version Identify the appropriate terms. by Jason Purser 1 A natural process resulting in the evolution of organisms best adapted to the environment. 2 Random change in allele frequencies that occurs in small populations 3 Situation in which allele frequencies remain constant 4 Process by which two species evolve in response to changes in each other 5 Formation of new species 6 The independent evolution of similar features in different lineages 7 __________ effect; a change in allele frequency following a dramatic reduction in the size of a population 8 When two or more species sharing a common ancestor become more different over time 9 The gradual change in a species over time 10 __________ effect; the change in allele frequencies as a result of the migration of a small subgroup of a population 10 2 3 7 5 8 1 9 6
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