Origin of Life

This experiment was conducted by the scientists:

• Stanley Miller and Harold Urey
• Harold Urey and Albert Einstein
• Louis Pasteur and Francesco Redi
• James Watson and Francis Crick

Which question were the scientists trying to answer with this experiment?

• Where do cells come from?
• How did prokaryotes form cell membranes?
• How are biomolecules formed?
• What gave rise to the Eukaryotic cell?

Miller/Urey and other scientists have shown that:

•  Life on early Earth required material from space
• Cells survived in the primitive atmosphere
• Amino acids could be produced from inorganic molecules 
• Simple cells can be produced in a laboratory

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Which type of cell came first?

• Eukaryotic
• Prokaryotic
• Plant
• Both Eukaryotic and Prokaryotic cells evolved around the same time

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The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

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NGSS.MS-LS4-1

Based upon the conditions of the early Earth, which forms of live most likely appeared first?

• Prokaryotic and aerobic
• Prokaryotic and anaerobic 
• Eukaryotic and aerobic
• Eukaryotic and anaerobic

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"Endosymbiosis" means

• Living together

• Entering together

• Living separately

• Joining together

Theory that says eukaryotic cells formed from symbiosis among several different prokaryotes.

• Natural Selection
• Biogenesis Theory
• Evolutionary Theory
• Endosymbiotic Theory

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One of the accepted scientific theories describing the origin of life on Earth is known as chemical evolution. According to this theory, which of the following events would need to occur first for life to evolve?

• onset of photosynthesis

• synthesis of organic molecules

• origin of genetic material

• formation of the plasma membrane

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

• eukaryotic and aerobic

• prokaryotic and aerobic

• prokaryotic and anaerobic

• eukaryote and anaerobic

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