Answer:
E. Population - community - ecosystem - biosphere
Explanation:
Population is the set of organisms of the same species
Community is where organisms of different species live and communicate together
ecosystem is a biological system where ocommunities and environment are present.
Biosphere is where all ecosystem are present. (let´s say, the earth)
Other than contributing to potential increase in diversity of species in an ecosystem, exotic species have positive benefits like removing toxins from the soil, regulating erosion, and controlling undesirable species.
Technically you are able to argue both ends. Biotic factors are living things while abiotic factors are no living things. since the plant was once living, you can argue that it is a biotic factor, however, I would say the dead plant decay would be abiotic because it is not living anymore. I hope that helped!
Anthropods have exoskeletons
