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Some people can curl their tongues. What evidence would support the hypothesis that tongue curling is an inherited trait?

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Wolfie901
its not an inherited trait. everyone is able to do this because they practice over and over again. 
but to make this hypothesis supported, you could go to people that have history with their parents being able to curl their tongues and them being able to curl their tongues too. 
tongue curling is an inherited trait bc if one of your family members have that trait you will to bc you are blood related