p. 424: punctuated equilibria, gradualism, stasis

p. 425: species, niche, biological species concept, taxonomic species concept, races, subspecies, varieties

p. 426: allopatric speciation, sympatric speciation

p. 427: achene, pappus

p. 428: clones, ecotypes

p. 430: prezygotic isolating mechanisms, postzygotic isolating mechanisms, geographical isolation, tigons, ligers

p. 431: ecological isolation, prides, chaparral

p. 432: behavioral isolation

p. 433: temporal isolation, mechanical isolation, prevention of gamete fusion

p. 435: polyploidy

p. 436: adaptive radiation

p. 438: cichlid, pedophages, mouthbrooders

p. 440: sexual selection, sexual dimorphism

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