Question

The hydra has an incomplete digestive system. How does the hydra remove undigested food? A. It pushes out food through an opening, which is also used to bring in food. B. It pulls food out with its tentacles. C. It diffuses food through its outer layer. D. It expels food by using a special opening for that purpose.

Answer 1

The answer is (D) the hydra remove undigested food out it expels food by using a special opening for that porpose.