Errors during duplication, errors during recombination, the movement of genetic elements, and dna damage
Indigestable food moves from the small intestine to the large intestine where water is absorbed back into the body. The waste is then passed through the rectum and excreted from the anus.
I would say the large intestine.
I am sure the answer is repel because human hair carries negative charges which mean they will repel because like things repel