Answer the following question given this paragraph: 

Passive transport requires no energy. It occurs when substances move from areas of higher to lower concentration. Types of passive transport include simple diffusion, osmosis, and facilitated diffusion.


Q: What type of transport requires no energy and occurs when substances move from areas of higher to lower concentration?

 Choices:

- immune transport

- bacterial transport

- active transport

- passive transport

A:
passive transport
