A. theory because it is an explanation that is supported by extensive observations, experimentation, and reasoning.
Explanation:
Evolution can best be described as a theory because it is an explanation that is widely supported by extensive observations, experimentation and reasoning.
Theories are formulated after careful observation into a particular phenomenon.
Most theories provides a vivid explanation into an observed event or process.
The theory of evolution is one of such theories that suggests that an organism changes in order to adapt to its environment.
Some of the key figures who contributed to the study of evolution are J. B Lamarck, Charles Darwin, Williams Smith e.t.c
Orbicularis oris muscle is the muscle related to the following activities. It is also related to the functioning of the nearby areas and for various other purposes too.
