In middle latitude (temperate) oceans, primary productivity is limited by ________. 

Organisms that feed only on other animals are called ________. 

Members of the Order Cetacea, such as orcas and porpoises use __________ to determine distance and direction to objects

Pan-Arabists generally:

The economic nationalism that inflamed international tensions and even internal relations between management and labor stemmed from

Writers, intellectuals and politicians on the left saw efforts to negotiate with fascist in the 1930s as

The event in 1933 that led to Hitler’s being given unlimited power was

Socialism was not so strong in Britain as in continental Europe, largely because Radical Liberals and the British Labour Party, which was founded in 1901,

Which of the following describes a way in which Stalin’s “Great Terror” defeated its own purpose?

What important theory of physics did Albert Einstein propose?