Aakriti made a mistake while writing down the steps of human digestion. Can you correct them?
Ingestion `to` Absorption `to` Assimilation `to` Digestion `to` Egestion

Explanation

To correct Aakriti's steps of human digestion, we need to reorder them properly. The correct sequence of the steps involved in human digestion is as follows:

1. **Ingestion**: This is the first step where food is taken into the mouth and swallowed.

2. **Digestion**: In this step, the ingested food is broken down into simpler substances by mechanical and chemical processes. This occurs in the stomach and small intestine.

3. **Absorption**: After digestion, the nutrients from the food are absorbed into the bloodstream through the walls of the small intestine.

...