Delta can also be an easy answer plus it is easy to remember
D. All of the above are true.
1 Answer. Mandira P. With the discovery of electron microscope, biologists realised that it did not make any sense to include prokaryotic world of bacteria in kingdom protista with single celled eukaryotic organisms. Hence a separate kingdom, Monera, was created.
Answer:
Therefore, an isolated ecosystem, will only be sustainable if it fulfills the condition of Organizational Sustainability:
Explanation:
gas exchange occurs in the human lungs.
