Every mass extinction leads to the rise of prominence of new groups of organisms. Using resources from the Internet, research what type of organisms were dominant after each of the five mass extinctions?

What is the purpose of the system of checks and balances

Which sentence best describes the effect of the bill of rights? a. it gave parliament the right to elect a successor when a monarch died. b.it ensured that no monarch could rule without parliament. c.it guaranteed all people the rights of liberty and property. d.it defined the rights of the officials of the church of england.

Arguments supporting and opposing the supreme court decision citizens united v. federal election commission identify two reasons why some supporters of the decision consider it a victory for free speech.