Which statement is true regarding ecosystems? They are examples of
A. closed systems in regards to matter.
B. closed systems in regards to energy.
C. open systems in regards to energy and matter.
D. open systems in regards to energy, but not matter.

He chart shows the 112th u. s. congress (2011–2012). based on the information in the chart, if the independents in the senate chose to vote with the republicans in the senate, the republicans would

According to the aztec history, how did the aztecs know where to build their new city of tenochtitlan? why was this a good location?

Congress is controlled by the democrats. president yaeger, a republican, takes several actions that are opposed by the democrats in congress. first, the president introduces a new budget that cuts most of the government's social programs and gives tax breaks to the wealthy. next, president yaeger negotiates a trade treaty with a nation accused of human rights abuses. then, the president gives pardons to three republican senators who have been convicted of crimes.