I believe it is (C), (Cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.) Hope this helps(:
Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)
Answer:
A. The chromosomes are split
Explanation:
That’s just what happens bud.
