 the natural environment of an organism

 Everything that surrounds and affects an animal, including living and nonliving things

 All the populations that live in the same area

 how everything in an environment can exist together.

 The actions or reactions based on external or internal conditions. 

 A behavior that an animal begins life with

 instinct you are born with

 actions you learn from experiences

 the struggle to stay alive

 the ability of a species to survive in a particular environment brought on by changes within that environment.

 a change or difference in characteristics based on environmental influences.

 to copy or create something new

 have a benefit over another

 to gain something good

 the ability for an organism to live because an it is better adapted than another.

 something in the environment that doesn’t belong that is harmful

 overflow of something, such as water.

 a condition that is abnormal or harmful

 to keep safe from danger or harm

 to avoid wasting or endangering something