Question

why ingestion of food is difficult without teeth​

Answer 1

Because if there are no teeths then the food particles cannot break and if we eat the food without chewing then we cannot digest it .

Answer 2

ingestion is difficult without teeth as it helps in breaking down large molecules of nutrients. if the food isn't broken down then it would be hard to swallow the food down the pipe (ingestion) because it cannot take in large chunks.