What is the name of a section of a chromosome that controls a characteristic?

A gene is a small section of DNA on a chromosome that codes for a particular sequence of amino acids, to make a specific protein. It is the unit of heredity, and may be copied and passed on to the next generation.

Hope this helps

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.