Biology 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

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NGSS.HS-LS2-3

The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids. Which of the following describes why the Miller-Urey theory is widely accepted today?

• Amino acids spontaneously form from molecules in the atmosphere today.

• Organic molecules are present today in extremely high concentrations.

• The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory.

• No other alternative hypotheses have been introduced.

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NGSS.HS-LS1-6

What gas was necessary for complex (eukaryotic) life to evolve?

• Carbon dioxide
• Oxygen
• Dihydrogen monoxide
• Methane

Which type of cell came first?

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

The idea that Earth's early oceans had organic molecules that became the first life is called the...

• Primordial soup hypothesis
• Bubble hypothesis
• Miller-Urey Experiment
• Radioactive dating theory

"Endosymbiosis" means...

• Living together
• Living inside
• Entering together
• Joining together

The theory of Endosymbiosis explains...

• The origin of eukaryotes
• How species develop
• How bacteria evolved
• Why cells rely on one another

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

Tags

NGSS.HS-LS1-6

What were the first organisms on Earth?

• plants

• fungi

• fish

• bacteria

The apparatus in the Miller-Urey experiment was used to mimic what?

• proteins

• Earth's present conditions

• early Earth's conditions

• they didn't mean to mimic anything in particular

Tags

NGSS.HS-LS1-6