Final answer:
True, Peristalsis is the correct term for the rhythmic, wavelike propelling mechanism of the alimentary canal that moves food through the digestive tract. It is characterized by sequential muscle contractions and is an involuntary process.
Step-by-step explanation:
The rhythmic, wavelike propelling mechanism of the alimentary canal is indeed called peristalsis, so the answer to the question is True. Peristalsis is vital to the digestive system, as it allows for the movement of food through the digestive tract through alternating waves of muscle contraction and relaxation. As food enters the esophagus, the process of peristalsis begins and continues down the gastrointestinal tract. The alimentary canal muscles contract in sequence, pushing the food along, which also mixes the food with digestive juices, aiding in the digestion and absorption of nutrients. It is an involuntary process, meaning it occurs without conscious control and ensures that food can move in the correct direction, from the mouth towards the anus, even when a person is in various positions, such as standing on their head.