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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 nonfunctioning structures are called vestigial structures. They still show evidence of common ancestry, but they do not do the same things in humans as they do in other animals
Listed below are mostly vestigial structures. Select the one that serves a purpose in humans.
ear muscles ability to wiggle ears in humans versus rotating ears to hear predators in prey animals like
deer and rabbits
pelvis: supports upper body and attaches to lower body in humans versus being tiny and nonfunctional in
legless animals like whales and snakes
tail tail bone in humans versus long tails for balance and communication in other animals like lizards and
wolves
hair raising goosebumps in humans versus raising hackles to appear larger and aggressive in other
animals like cats and monkeys
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Humans have a lot of homologous structures in common with other animals, and several of these struct...
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