An ecosystem select one: a. is a regional grouping of plants, animals, and other biotic factors b. is the total population of a specific kind of plant, animal, or microbe and all members of which do or potentially can interbreed and produce young c. encompasses all the organisms and the physical and chemical environment within an area d. is a grouping of plants and animals that interacts with one another in a way that causes the grouping to die e. is a collection of interacting species living in a specific area