Question

How do large animals ensure the quick reaching of oxygen from the respiratory surface to each of their body cells?

• A. Through rapid diffusion of oxygen from respiratory surface to body cells
• B. Through presence of several respiratory surfaces in different parts of the body
• C. Through the close association of respiratory surface with the transport system
• D. By closely associating respiratory and excretory structures

Answer 1

The correct option is C

Through the close association of respiratory surface with the transport system

In large animals, the respiratory surface is closely associated with the transport system. This ensures that the oxygen reaches the cell quickly.