Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
I would say it supports the inside out model. because both planets are similar
The circulatory aids with the immune system because they provide white-blood cells to help fight with the diseases or sicknesses.
This skin is known as the body membrane
The synthesis<span> of </span>proteins<span> takes two step, transcription and translation. Transcription takes the information encoded in DNA and encodes it into mRNA, which heads out of the cell's nucleus and into the cytoplasm. During translation, the mRNA works with a ribosome and tRNA to synthesize </span>proteins<span>.</span>