Origin Of Life Post-assessment (Grade 8)

12 Questions | By Tagscience | Last updated: Mar 21, 2022 | Total Attempts: 112

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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?