For roughly 85 percent of life's 3.5 billion-year history, it was entirely made up of single-celled organisms, such as bacteria and algae.
Algae can be cultivated to make a nutritious paste.
mnli hypothesis: Algae can be cultivated to make a nutritious paste. premise: For roughly 85 percent of life's 3.5 billion-year history, it was entirely made up of single-celled organisms, such as bacteria and algae.