Why is it possible that you share some matter with a dinosaurs a million years ago?

It's possible that you share some matter with dinosaurs because all living organisms are made up of atoms that have been recycled through various forms of life over billions of years. The atoms that compose your body may have once been part of a dinosaur or other ancient life forms, as they have been continuously transformed through biological processes, decay, and the Earth's geological cycles. This idea is rooted in the concept of the conservation of matter and the interconnectedness of all life on Earth.