The digestive system is made of the organs that take in foods and liquids, breaking them down into substances that will be used by the body to grow, repair tissue and get energy. Frogs and humans digestive systems have lots of similarities, such as the organs involved and their function. But there are differences too. Frogs has two sets of teeth and they does not have strong teeth like humans, their tongue is attached to a different place than the human's tongue, they have a shorter small intestine than us as well and they also have a cloaca (that humans doesn't have) used for eliminating undigested solid and liquid wastes.