How does WiFi relate to TCP/IP?

Am I correct when I say that WiFi networks use TCP/IP as the communication protocol? Are Wireless networks simply replacing the physical medium that transfers the data? Or is WiFi a completly different protocol. Also, how does Bluetooth compare to WiFi? Is it just the BT is for smaller range... show more Am I correct when I say that WiFi networks use TCP/IP as the communication protocol? Are Wireless networks simply replacing the physical medium that transfers the data? Or is WiFi a completly different protocol.

Also, how does Bluetooth compare to WiFi? Is it just the BT is for smaller range communication?

Thank you.
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