I had the same answers
Omnivores - helped them survive and be on this planet for very long, don’t remember the exact words.
Digestive system - helped them against poisons.
South America, most prevalent there...
Tannin I answered as well.
The Queen makes a new ... (place, what did they call it again?) and the other ants.. don’t remember my answer increase the size. Soldiers are 100 bigger than others in the colony.
Queens dig the small chamber - medium sized enlarges the chamber / small one cleans the nest / big ones get the leaves / soldiers are 100 times bigger -