Hey I'm super stuck in my assignment! My assignment is asking my to compare the digestive system of a dog frog and bird.. I've been trying to look up loads of stuff but nothing seems to be helpful.. Does anyone know about any of this ? I will reference yous in my assignment

Where does the digestive system begin?

The mouth..

The mouth..

Very good. What's next? Who has a gullet and who doesn't? What does the gullet do?

Haven't got a clue..

Haven't got a clue..

This is your first step. Look it up the come back and tell me what you found.