Experimenters replaced the statoliths in a crayfish statocyst with iron filings and then held a magnet above the animal.Based on your knowledge of the function of statoliths,what would they observe?
A)The crayfish stayed upright.
B)The crayfish lay on its side.
C)The crayfish turned upside down.
D)The crayfish attempted to escape by rapidly swimming backwards.
E)None of these choices are correct.

Question

Quizplus · Accepted Answer

Statoliths are small mineralized calcium carbonate bodies in the statocysts of invertebrates that help them maintain balance and orientation. Since the statoliths have been replaced with iron filings, they would be attracted to the magnet, causing the crayfish to turn upside down.

Experimenters Replaced the Statoliths in a Crayfish Statocyst with Iron