Living things will make changes in response to a stimulus in their environment. A behavior is a complex set of responses. Cell division - the orderly formation of new cells. Cell enlargement - the increase in size of a cell. Reproduction is not essential for the survival of individual organisms, but must occur for a species to survive.
Adaptations are traits giving an organism an advantage in a certain environment.
Variation of individuals is important for a healthy species. If your answer is no, give an example. Name some non-living thing that uses energy. Name some non-living thing that grows. There are many theories used to describe how life started on Earth.