Briefly explain what scientists might learn from a prairie dog simulation that would be difficult to learn from studying an actual group of prairie dogs.

Hurry ! between 1900 and 2010, how did the world’s population change? a. it increased from about 1.5 billion to almost 7 billion. b. it decreased from about 7 billion to about 1 billion. c. it increased from about 5 billion to about 7 billion. d. it decreased from about 7 billion to about 1.5 billion.

Plz me match the correct text in each cell to identify the contributions to the war effort of the three facilities listed. 1. built b-29s, putting hundreds of the war's most advanced aircraft into service 2. large civilian workforce transported soldiers and goods to the two war fronts; built "liberty ships" to move men and supplies across the ocean 3. trained new recruits, held prisoners of war, repaired damaged aircraft, prepared thousands of soldiers for combat bell bomber plant military bases brunswick

Which is the most accurate description of the executive office of the president? groups of advisers who the chief of staff groups of advisers who the president groups of advisers who oversee national security groups of advisers who oversee the economy