Which of the following organisms has the simplest digestive system?
A) earthworm
B) jellyfish
C) grasshopper
D) clam
E) more than one of these organisms has the simplest digestive system

Question

Quizplus · Accepted Answer

Jellyfish have a sac-like digestive system with only one opening, where food enters and waste exits. This is the simplest form of digestive system, known as incomplete digestive system. The other organisms listed have more complex digestive systems with specialized organs and multiple openings.

Which of the Following Organisms Has the Simplest Digestive System