Transporters that move two substances in the same direction are known as a. uniporters. b. directional transporters. c. symporters. d. facilitated transporters. e. active transporters.

C. Symporters.

Explanation:

Symporters transport two substances across a membrane in the same direction. Symporters are protein membranes, they have receptors that bind to the substance being transported. They work in the cell membrane and require energy for the transportation process which makes it a form of active transport. Examples of Symporter is The Na+/I− symporter (NIS).

answer; overt behavior;

answer; /// all of the above;