Question

the digestive tract (also referred to as the gastrointestinal tract) includes the mouth, esophagus, stomach, small intestine, and large intestine. what level of organization is this an example of? a organ b organ system c cell d tissue

Explanation:

An organ system is a group of organs that work together to perform a specific function. The digestive tract, with its multiple organs like mouth, esophagus, etc., is an organ - system responsible for digestion.

Answer:

B. organ system