The theory of endosymbiosis suggests that the ancestors of mitochondria were a) formed due an error in cytokinesis. b) once free-living heterotrophic prokaryotic cells. c) parasitic cells that lived within more complex organisms. d) once free-living cells that remained joined after mitosis.

The theory of endosymbiosis suggests that the ancestors of mitochondria were once free-living heterotrophic prokaryotic cells. They were able to use oxygen to release energy from organic molecules by cellular respiration. At some point, they were engulfed by larger prokaryotes, and remained there, providing ATP to the larger cell.

rocks and weathering-matching

raits that your monster will have. the dna code for each trait is given, so you will need to go through the process of transcription and translation to determine what protein is being made and then match that with the corresponding trait. you may even include a picture of your monster if you are feeling creati