Which of the following was produced in experiments on primitive Earth conditions conducted by Miller-Urey and others?
A) ammonia and water
B) amino acids
C) CO2 and H2O
D) ammonia and hydrogen sulfide
E) methane and oxygen
Correct Answer:
Verified
Q1: The early Earth's reducing atmosphere probably contained
Q2: Two principal organelles in eukaryotes that were
Q3: An experimental test of the hypothesis to
Q4: Eukaryotic cells acquired mitochondria and chloroplasts by
A)endosymbiosis.
B)exocytosis.
C)pinocytosis.
D)mutation.
E)natural
Q6: A scientist is studying endosymbiosis in cells.This
Q7: The oldest fossils of eukaryotes have been
Q8: Life apparently originated on Earth about
A)1 million
Q9: Which one of the following statements about
Q10: Which of the following was demonstrated by
Q11: Homo sapiens have existed on earth for
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