Unit 1 Quiz 6

7 Questions | Total Attempts: 22

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Environment Quizzes & Trivia

Testing myself


Questions and Answers
  • 1. 
    This subtype of speciation occurs in response to environmental vacuums, that gives a burst of divergence and gives rise to many new species in a short period of time. It is a type of allopatric speciation.
    • A. 

      Sympatric

    • B. 

      Parapatric

    • C. 

      Postzygotic isolation

    • D. 

      Adaptive Radiation

  • 2. 
    This speciation occurs when there is a physical barrier preventing gene flow between populations.
    • A. 

      Allopatric

    • B. 

      Adaptive Radiation

    • C. 

      Sympatric

    • D. 

      Parapatric

  • 3. 
    This occurs when neighboring populations become a distinct species while sharing a common boarder. Interbreeding Individuals along the border produce hybrids, and produce a hybrid zone which act as a barrier to gene flow. 
    • A. 

      Allopatric

    • B. 

      Adaptive Radiation

    • C. 

      Sympatric

    • D. 

      Parapatric

  • 4. 
    This occurs when species are still living in home range of their parent species, due to hybrid formation or mutation. Occurs in organisms with low motility or those in confined spaces. 
    • A. 

      Allopatric

    • B. 

      Adaptive Radiation

    • C. 

      Sympatric

    • D. 

      Parapatric

  • 5. 
    The two reproductive Isolating mechanisms are ____________ isolation and ____________ isolation. 
  • 6. 
    • A. 

      Temporal (timing of reproductive systems.

    • B. 

      Behavioral (different courtship behaviors)

    • C. 

      Ecological (Isolated by different microhabitats)

    • D. 

      Formation (Zygote fails to develop)

    • E. 

      Gamete (Non-compatible gamete type. Egg won't accept sperm)

  • 7. 
    Molecular clocks keep track of the number of _______ ___________ in conserved genes.