What two gases were most abundant on early Earth?
A) O₂ and CO₂
B) N₂ and H₂
C) CO₂ and H₂
D) CO₂ and N₂
Correct Answer:
Verified
Q10: A monophyletic group is a group that
A)
Q11: Molecular sequencing suggests that mitochondria arose from
Q12: A key concept in evolution is that
Q13: A gene for a specific trait may
Q14: Compared with today, the temperature on Earth
Q16: Horizontal gene transfer
A) is so rare over
Q17: The earliest RNA probably functioned in
A) catalysis.
B)
Q18: Evolution is driven by
A) random mutation.
B) novel
Q19: LUCA is
A) the last universal common ancestor.
B)
Q20: If you allowed 10 identical parallel Salmonella
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