unit 1 chapter 2 biologic evolution in the marianas n.
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Unit 1 Chapter 2: Biologic Evolution in the Marianas. Biologic Evolution: Key Terms. Indigenous, endemic or introduced Endangered and extinct Island & Endemism Types of reefs 8 ways of arrival. Indigenous species.

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biologic evolution key terms
Biologic Evolution: Key Terms
  • Indigenous, endemic or introduced
  • Endangered and extinct
  • Island & Endemism
  • Types of reefs
  • 8 ways of arrival
indigenous species
Indigenous species
  • Flora and fauna that occur naturally at a specific place but can also be found some place else in the world
endemic species
endemic species
  • Flora and fauna that occur naturally at a specific place and nowhere else in the world
introduced species
introduced species
  • Flora and fauna that were brought to an area with the help of human activity
endangered species
endangered species
  • Flora and fauna that are threatened close to an extinction
endangered species1
endangered species
  • Flora and fauna that no longer exists
island and endemism
Island and endemism
  • Reproductive isolation
    • No breeding leaving character traits not normally expressed develop and become prominent as species adapt to environment
  • Small gene pool
    • Causes interbreeding with traits not normally expressed develop opening the window to a new species
  • Lack of predation
    • Adaptation that might not last in the presence of a variety of predations (loss of flight of the Marianas mallard)
types of reef
Types of reef
  • Fringing
    • Grows along the fringes of an island
  • Barrier
    • Grows up and out and is separated by a lagoon
eight ways of arrival
Eight ways of arrival
  • Swimming
  • Floating
  • Hitchhiking
  • Gut transport
  • Blown by wind
  • Flying
  • Rafting
  • Human-aided