In your biology lab,you use a stereoscopic microscope to observe a living animal that uses only one opening to both take in its food,and also eject its waste products after having eaten and digested the food for metabolism.This body arrangement of the animal is which of the following?

Question

Quizplus · Accepted Answer

The correct answer is E) incomplete digestive tract and a gastrovascular cavity. This is because an animal that uses only one opening to both ingest food and eject waste has an incomplete digestive tract, which is also known as a gastrovascular cavity. This type of digestive system is characteristic of simpler organisms, such as cnidarians (e.g., jellyfish and sea anemones), where a single opening serves as both mouth and anus.

In Your Biology Lab,you Use a Stereoscopic Microscope to Observe