Question

lo 5.3 - 5.4. what is the first step in the digestive process?
peristalsis
mastication
chyme formation
metabolism
ingestion

Explanation:

The digestive process begins with taking food into the body, which is called ingestion. Peristalsis is muscle movement in the digestive tract, mastication is chewing (a part of ingestion but ingestion as a whole is the start), chyme formation is in the stomach after initial steps, and metabolism is a broader process beyond just digestion start.

Answer:

Ingestion