Humans have a lot of homologous structures in common with other animals and several of these structures are no longer in working order in human bodies. These non-functioning structures are called vestigial structures. They show evidence of common ancestry but they do not do the same things in humans as they do for animals. Listed below are most likely vestigial structures. Select the one that servers, a purpose in humans. Ear muscles ability to wiggle ears in humans versus rotating ears to hear predators in prayer like deer and rabbits , pelvis supports upper body and attaches to lower body in humans versus being tiny and non-functional and legless animals like whales and snakes, tail tailbone and humans versus long tails for balance and communication in other animals like lizards and wolves or hair raising goosebumps and humans versus raising heckles to appear larger and aggressive and other animals like cats and monkeys?
