Bacteria took sea grass (which is not a usable food for many organisms) and not only turned it into a form of food that was usable but also enriched the food. Please explain.
(*I'm thinking that the sea-grass isn't usable because it's probably a form of cellulose and then I"m thinking that they nitrogen cycle somehow helps convert but I can't completely explain.)
Explanation and web links regarding the use of sea grass as an enriched food source.