Chapter 22 Key Terms

• p. 498: species, niche
  
• p. 499: races, subspecies, varieties, intergrade
  
• p. 500: allopatric speciation, sympatric speciation
  
• p. 501: clones
  
• p. 502: ecotypes
  
• p. 504: prezygotic isolating mechanisms, postzygotic isolating mechanisms, geographical isolation, ecological isolation
  
• p. 505: prides, chaparral, temporal isolation, behavioral isolation, mechanical isolation, prevention of gamete fusion
  
• p. 507: sibling species
  
• p. 508: adaptive radiation
  
• p. 511: sexual selection, parthenogenesis, polyploidy, polyploid
  
• p. 512: progenitor species