Question

definition picture/characteristics respiratory system 1. 2. 3. example non - example (or opposites)

Explanation:

The respiratory system is a biological system responsible for gas - exchange (taking in oxygen and expelling carbon dioxide). Its main components include the lungs, trachea, bronchi, etc. A picture could show the anatomical structure of these parts. Examples are the human respiratory system and the respiratory system of a mammal. Non - examples could be the digestive system (which is for breaking down food and absorbing nutrients, not gas - exchange).

Answer:

Definition: A biological system for gas - exchange.
Picture/Characteristics: Shows anatomical structures like lungs, trachea.
Example: Human respiratory system.
Non - Example: Digestive system.