I would say that would be DNA
Hope this helps :)
A simple columnar epithelium<span> is a </span>columnar epithelium<span> that is uni-layered. In humans, a simple </span>columnar epithelium<span> lines most </span>organs<span> of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the </span>uterus<span>.</span>
Answer:
C. The evolution of many species from a single ancestor over a long period of time
The answer to this question is Fossil Fuels
Moving faster will increase the kinetic energy