Question

endosymbiotic theory tells us that the eukaryotic mitochondria evolved from a(n) ___ that was engulfed and incorporated into the cell

Answer 1

The endosymbiotic theory suggests that the eukaryotic mitochondria evolved from a(n) **aerobic prokaryote** that was engulfed and incorporated into the ancestral eukaryotic cell. This theory postulates that this engulfed prokaryote formed a symbiotic relationship with the host cell, ultimately evolving into the mitochondria we see in eukaryotic cells today.