Which Organism Arose First

Q1: ​Mitochondria were incorporated into eukaryotes after chloroplasts.

Q2: Four of the five answers represent likely

Q3: ​The oldest multicellular eukaryote, a(n) _, can

Q4: Oxygen released by _ accumulated in early

Q5: ​A protocell is capable of self-replication.

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