Origin Of Life Post-assessment (Grade 8)

12 Questions | Total Attempts: 112

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8th Grade Science Quizzes & Trivia

Origin of Life Post-Assessment (Grade 8)


Questions and Answers
  • 1. 
    Identify two differences between prokaryotic cells and eukaryotic cells (Standard 1.3 a):
  • 2. 
    List the three eras of the Phanerozoic eon in chronological order (Standards 3.1a, 3.1j).
  • 3. 
    What evidence do scientists have that the theory of endosymbiosis is correct?  Give at least 2 examples   (Standards 1.3 a, 3.1a, 3.1j).
  • 4. 
    The Miller-Urey experiment in which water, gases, heat and electricity formed amino acids demonstrates the following (Standard 3.1j):
    • A. 

      It is possible for organic molecules to form from inorganic molecules

    • B. 

      It was proven that spontaneous generation is possible

    • C. 

      It supported the theory of biogenesis

    • D. 

      It demonstrated that RNA was the first genetic coding system in early Earth

    • E. 

      It is possible for inorganic molecules to form from organic molecules

  • 5. 
    According to Dr. Niles Eldridge, what is unique about the “sixth extinction” (Standard 3.1j)?
    • A. 

      The Sixth Extinction seems to be the first recorded global extinction event that is an abiotic cause.

    • B. 

      The Sixth Extinction seems to be the first recorded global extinction event that is a biotic cause.

    • C. 

      The Sixth Extinction is caused by global climate change

    • D. 

      The Sixth Extinction seems to be the first recorded global extinction caused by meteor impact.

    • E. 

      The Sixth Extinction seems to be the first recorded global extinction event that is not caused by humans.

  • 6. 
    Banded iron formations are important evidence for which idea in the early evolution of life (Standard 3.1j)?
    • A. 

      Chemotrophic autotrophs

    • B. 

      Endosymbiotic organelles

    • C. 

      Photosynthetic autotrophs

    • D. 

      Heterotrophic prokaryotes

    • E. 

      Heterotrophic eukaryotes

  • 7. 
    Which of the following is the best argument that RNA may have preceded DNA (Standard 3.1j)?
    • A. 

      RNA is made of ribose and DNA is made of deoxyribose.

    • B. 

      Enzymes are used during DNA replication.

    • C. 

      Hydrogen cyanide can react with itself to eventually form adenine.

    • D. 

      DNA is made up of nucleotides.

    • E. 

      All DNA-based life forms contain RNA

  • 8. 
    Carbon-14 has a half-life of 5,730 years.  What is the age of a fossil that has 1/8 of the original sample of Carbon-14 remaining (Standard 3.1a)?
    • A. 

      5,730 Years Old

    • B. 

      11,460 Years Old

    • C. 

      17,190 Years Old

    • D. 

      716.25 Years Old

    • E. 

      5.7 Million Years Old

  • 9. 
    The theory of                                    states that only living organisms can produce other living organisms (Standards 3.1 a, 4.1a).
  • 10. 
    During the Paleozoic Era, the (two words)                                was a rapid diversification of most marine animal groups in the space of just a few million years (Standards 3.1a, 3.1j).  
  • 11. 
    Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how much do you know about the origin of life on Earth?
  • 12. 
    Rate, on a scale of 1 – 4, 1 being the lowest and 4 being the highest, how interested you are in the origin of life on Earth?
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