The carbon cycle is carbon compound are inconverted onto the environment
Studying evolutionary relationship among organisms
<span>aerobic respiration requires oxygen.</span>
Am pretty sure C or A but I think C
...The origin of life on Earth is a set of paradoxes. In order for life to have gotten started, there must have been a genetic molecule.. something like DNA or RNA—capable of passing along blueprints for making proteins, the workhorse molecules of life.
