Stanley Miller and Harold Urey created an experiment that simulated conditions on early Earth. Building on the results from this experiment, scientists decide to test the effect of varying the initial amount of NH3 on monomer formation. They set up the same simulation with the exception of starting with three different concentrations of NH3. The amounts of H2 and CH4 are kept constant in each treatment. They run five simulations per NH3 concentration, as well as five simulations that only have H2 and CH4. Why did the scientists run five simulations with no NH3? *
Stanley Miller and Harold Urey created an experiment that simulated conditions on early Earth. Building on the results from this experiment, scientists decide to test the effect of varying the initial amount of NH3 on monomer formation. They set up the same simulation with the exception of starting with three different concentrations of NH3. The amounts of H2 and CH4 are kept constant in each treatment. They run five simulations per NH3 concentration, as well as five simulations that only have H2 and CH4. Why did the scientists run five simulations with no NH3? *
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Stanley Miller and Harold Urey created an experiment that simulated conditions
on early Earth. Building on the results from this experiment, scientists decide to
test the effect of varying the initial amount of NH3 on monomer formation. They
set up the same simulation with the exception of starting with three different
concentrations of NH3. The amounts of H2 and CH4 are kept constant in each
treatment. They run five simulations per NH3 concentration, as well as five
simulations that only have H2 and CH4. Why did the scientists run five
simulations with no NH3?
O To test the hypothesis that early Earth's atmosphere contained no NH3.
O This serves as the control group.
) To test the effect that H2 and CH4 have on monomer formation.
O NH3 is a controlled variable.
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