Human System: Digestive System

Digestion is the mechanical and chemical breaking down of food into smaller components that can be absorbed into a blood stream. Digestion is a form of catabolism: a break-down of larger food molecules to smaller ones.

System: Plant System - An Overview of the Plant System.

System refers to a whole made up of several parts or members. This set of interacting or interdependent entities form an integrated whole to perform a task.

The video clip below provides an overview of the plant system.