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.
In biology, adaptation is the process by which an organism changes  to become better suited to survive in their environment. It can  also refer to a physical or genetic traiâ¦t that helps an organism to  be better suited to survive in their environment.