2013 Hyundai Elantra Limited 4 Cyl 1.80L. Steering & Suspension - by Jenna Smith 10/7/2016. Thrumming and vibration under feet when driving Last week I noticed that my car started to have a thrumming noise and a vibration under my feet when driving over the speed of about 20 mph.
Adaptation - Definition. Any alteration in the structure or function of an organism or any of its parts that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment. Traits - Definition.
A change in structure, function, or behavior by which a species or individual improves its chance of survival in a specific environment. Adaptations develop as the result of natural selection operating on random genetic variations that are capable of being passed from one generation to the next.