Competitive exclusion occurs when
a. organisms attempt to fill the same niche
b. organisms mark their territory
c. organisms experience intraspecific aggression
d. organisms have a symbiotic relationship

Interest groups are protected by the first amendment guarantees of petition. and what other freedom?

Which phrase best fits in the blank box? wasted government money gave citizens government money encouraged people to vote supported government investigations

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?