Origins of Life

Which types of organisms developed first due to the early environmental conditions on Earth?

• prokaryotic and aerobic

• prokaryotic and anaerobic

• eukaryotic and aerobic

• eukaryotic and anaerobic

Which of the following was presumably absent from Earth Early atmosphere based on the conditions present at the time?

• Carbon Dioxide (CO2)

• Methane (CH4)

• Oxygen (O2)

• Water(H2O)

• Cyanide (CN-)

Tags

NGSS.HS-ESS1-6

Which of the following explains why cells that contained mitochondria-like organelles had an evolutionary advantage?

• They were able to photosynthesize

• They had more DNA

• They were able to make more use of available energy

• They were immune to bacterial invasion.

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What was formed in the Miller-Urey experiments?

• amino acids

• proteins

• living cells

• DNA

Tags

NGSS.HS-LS1-6

Bio - means...

• Earth

• Growth

• Life

• Location

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NGSS.HS-LS1-1

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NGSS.HS-LS2-5

According to chemical evolution theory, which of the following events would need to occur first for life to evolve?

• onset of photosynthesis

• origin of DNA

• synthesis of organic molecules

• formation of volcano

Which of the following is considered the most likely location for the origin of life on Earth?

• Deep-sea hydrothermal vents

• Deserts

• Polar ice caps

• Mountain tops

What is the significance of the Miller-Urey experiment in the study of the origins of life?

• It demonstrated that organic molecules could form under prebiotic conditions.

• It proved that life originated from outer space.

• It showed that DNA can be synthesized in the lab.

• It confirmed the presence of oxygen in early Earth's atmosphere.

Tags

NGSS.HS-ESS1-6

Which molecule is believed to have been the first genetic material?

• DNA

• RNA

• Proteins

• Lipids

What role do clay minerals play in the origin of life theories?

• They provide a surface for organic molecules to concentrate and react.

• They supply energy for chemical reactions.

• They act as catalysts for photosynthesis.

• They are the primary source of organic molecules.