-The spark discharge in the accompanying figure represents ____.
A) sunlight energy in the environment.
B) heat energy in the environment.
C) electrical energy in the environment.
D) ionizing radiation in the environment.
E) the explosion of the hydrogen gas to release energy for the reactions.
Correct Answer:
Verified
Q9: The first cells were _.
A) autotrophic
B)
Q10: The by-product of the metabolism of cyanobacteria
Q11: Four of the following statement about protocells
Q12: Analysis of genomes of modern species indicates
Q13: The evolution of biochemical molecules started on
Q15: A membranous sac that contains interacting organic
Q16: RNA is believed to have preceded DNA
Q17: Life probably would never have emerged on
Q18: Aerobic respiration became established as a result
Q19:
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