Multiple Choice
A Paramecium "knows" when it has encountered a noxious substance and backs off to veer away.As a one-celled organism,how does it "know" to do this?
A) The macronucleus has DNA coding that determines this reaction.
B) The micronucleus is dedicated to controlling just such responses.
C) This cell is essentially a small neuron, or nerve cell.
D) This is a rather simple stimulus that changes the electrical potential difference across the cell membrane and depolarization of the membrane results in cilia reversing their direction of beating.
E) None of the choices are correct.
Correct Answer:
Verified
Correct Answer:
Verified
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