Its a type of motile prtist that uses protist to nonmotile motile thingd
<span>A. They represent contributions from the general public on sites like Wikipedia
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Option 1 is the correct answer
A receptor is located on a cell membrane. Any neuronic transmission, hormone, etc. that cannot get inside of the cell's membrane will sit on the receptor in order to pass its message along to the cell. When the molecule sits on the receptor, it causes a series of reactions to occur inside of the cell. From the series of reactions that occur inside of the cell, the message is passed along, and the cell will perform as indicated by the molecule on the cell receptor.
