Multiple Choice
Four of the five answers represent likely mechanisms contributing to how life's first building blocks formed. Select the exception.
A) lightning-fueled atmospheric reactions
B) delivery from ancient volcanoes
C) reactions at hydrothermal vents
D) delivery from outer space
E) spontaneous combustion
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Mitochondria were incorporated into eukaryotes after chloroplasts.
Q3: The oldest multicellular eukaryote, a(n) _, can
Q4: Oxygen released by _ accumulated in early
Q5: A protocell is capable of self-replication.
Q6: Which organism arose first?<br>A)archaea<br>B)animals<br>C)fungi<br>D)plants<br>E)protists
Q7: Cyanobacteria are ultimately responsible for the ozone
Q8: Metabolism may have begun when _ within
Q9: Ribosomes can catalyze formation of peptide bonds.
Q10: All species on Earth today are descended
Q11: Who demonstrated the possibility of producing organic