what should be changed to make the following sentence true? ""the frequency theory of pitch perception asserts that frequency is coded by the activity level of a sensory neuron.""

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

no one should discriminated against because he or she is not from a minority group

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.

the use of electrical signals that transit messages is know as