Different scientists have speculated about how the first living thing appeared on Earth. All of the following are supported by evidence EXCEPT
A) origin on Earth of a photosynthetic autotroph.
B) origin on Earth of a chemosynthetic autotroph.
C) origin on Earth of an anaerobic heterotroph.
D) an organism arrived from an extraterrestrial source.
Correct Answer:
Verified
Q11: If oxygen had been present at the
Q12: Biogenesis states that life begins with
A) oceans.
B)
Q13: Stanley Miller's experiment
A) proved the origin of
Q14: If the first living things were autotrophs,
Q15: It is speculated that one of the
Q17: To produce organic matter from inorganic matter,
Q18: Currently _ is/are thought to have been
Q19: If the first primitive cells on Earth
Q20: According to Oparin's theory of the origin
Q21: All of the following may have been
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