Origin Of Life Post-assessment (Grade 8)
Origin of Life Post-Assessment (Grade 8)
- 1.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
- 2.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.
- 3.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
- 4.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
- 5.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
- 6.Identify two differences between prokaryotic cells and eukaryotic cells (Standard 1.3 a):
- 7.List the three eras of the Phanerozoic eon in chronological order (Standards 3.1a, 3.1j).
- 8.The theory of states that only living organisms can produce other living organisms (Standards 3.1 a, 4.1a).
- 9.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).
- 10.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).
- 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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