WHAT WAS THE MILLER-UREY EXPERIMENT?

What was once believed about the appearance of living creatures like maggots and rats when food was left out to rot?

• They evolved from simpler organisms.
• They spontaneously generated.
• They migrated from nearby locations.
• They emerged from chemical reactions.

In the 1800s, what scientific law was proposed to replace the idea of spontaneous generation?

• Law of Complexity
• Law of Evolution
• Law of Life Only from Life
• Law of Gradual Formation

According to Charles Darwin, under what circumstances can relatively simple creatures give rise to more complex creatures?

• Through spontaneous generation
• In warm little ponds with specific conditions
• Only through direct intervention by humans
• In controlled laboratory environments

What did Russian biochemist Alexander Oparin propose in his book "The Origin of Life"?

• Spontaneous generation of life
• Gradual progression from simple chemistry to living cells
• Evolution of complex creatures
• Direct creation of life by lightning

Why were Darwin's warm little pond and Oparin's primordial soup considered speculation at the time?

• Lack of understanding of chemistry and biology
• Based on observable facts
• Supported by fossil evidence
• Lack of testing and observation

What challenge is mentioned in studying the origin of life without fossils or a time machine?

• Lack of interest from scientists
• Lack of observable facts
• Lack of chemical reactions
• Lack of a fossil record

What breakthrough did Stanley Miller's experiment achieve in the 1950s?

• Creation of life in the laboratory
• Development of a time machine
• Formation of amino acids under ancient Earth-like conditions
• Discovery of the primordial soup

What was the goal of the Miller-Urey experiment?

• To create life
• To test Oparin's entire model
• To simulate the ancient water cycle and test the first step in Oparin's model
• To observe spontaneous generation

What gases were chosen by Miller and Urey to model the ancient atmosphere in their experiment?

• Oxygen, nitrogen, and carbon dioxide
• Methane, hydrogen, and ammonia
• Helium, neon, and argon
• Water vapor, nitrogen, and oxygen

What is mentioned as the sources of energy on the ancient Earth in the Miller-Urey experiment?

• Sunlight and thunderstorms
• Geothermal heat and sparks
• Oxygen and lightning
• Methane and hydrogen