The correct option is A. An invasive specie is an animal which is not native to an environment and which has just been recently introduced to the new environment either accidentally or intentionally. An invasive specie spread quickly and it has harmful effects on the environment. The graph shown by the population growth of a new invasive specie is a graph of rapid birth of young ones. Invasive specie usually reproduce rapidly, taking over their new territory to the detriment of the native species.
