Replicates can be used to measure variation in the experiment so that statistical tests can be applied to evaluate differences. Averaging across replicates increases the precision of gene expression measurements and allows smaller changes to be detected.
An area present in the body that is highly sensitive and thus the stimulation of which may result in sexual arousal is termed as an erogenous zone.
There are different erogenous zones present in the body an all these zones vary in their sensitivity and these zones mainly provide a sense of pleasure upon stimulation.
However, the ultimate erogenous zone is the mind and one can say that it is a hidden erogenous zone as it is not exposed to tactile sensations like the other areas.
This is the reason why during urological or gynecological exams or unwanted sexual advances a person doesn't get sexually aroused even though the same areas are being touched.
