Which of the following has a gut with two openings, a mouth, and an anus?

Question

Quizplus · Accepted Answer

Annelids, such as earthworms, have a gut with two openings (a mouth and an anus) as well as a digestive system with a muscular pharynx, esophagus, crop, gizzard, and intestine. Flatworms have only one opening for both the mouth and the anus (known as a gastrovascular cavity), cnidarians have a single opening known as a gastrovascular cavity, sponges lack a true gut, and placozoans have a simple, diffuse digestive system without a clear gut structure.

Which of the Following Has a Gut with Two Openings