Which of these would be a protozoan form of life? * 1)a large, complex organism -- such as a human whose body is made of multiple organ systems.
2)a tiny organism that was one of the first to develop and whose body is a single cell.
3)a large, complex organism that converts solar energy into chemical energy.
4()any organism that takes in (or breathes in) oxygen and puts out CO2 (carbon dioxide)

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?