transistors - making two wires short when arduino gives 1 on digital output

I want to short two wires when arduino gives 1 on specific digital I\O. Transistor is the best solution I have got but I am not able to find transistor Ic for 3.3 v switching. Do share with me if there is some other solution than transistor. Can somebody tell me the name of transistor which works for 3.3v when base is given 1. Thanks