Biological processes that systematically vary over a 24-hour cycle are called _____ and are regulated by a cluster of neurons called the _____.
A)intrinsic rhythms; melatonin cluster
B)circadian rhythms; suprachiasmatic nucleus
C)circadian rhythms; pineal gland
D)brain waves; suprachiasmatic nucleus

Question

Quizplus · Accepted Answer

Circadian rhythms are biological processes that follow a 24-hour cycle and are regulated by a cluster of neurons called the suprachiasmatic nucleus (SCN). The other options are incorrect as melatonin cluster and pineal gland are not responsible for regulating circadian rhythms, and brain waves are not a biological process that vary over a 24-hour cycle.

Biological Processes That Systematically Vary Over a 24-Hour Cycle Are