Heinroth (1924) states that berries pass through the digestive tract of Bohemian Waxwings in the space of a "few minutes.
The absence of a digestive tract in an animal that lives in an environment rich in dissolved nutritive material (as for instance tapeworms living in the intestinal tract) is not surprising.
I infer from the facts that the more a digestive tract is charged with microbes, the more it is a source of harm capable of shortening life.
But when creatures of the sea or of fresh water have no digestive tract, their life can be maintained only at the expense of nutritive material stored within them during embryonic life.
Cockroach, Venezuela (Tejera, 1926): Organism found in digestive tractof the cockroach.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "digestive tract" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
