How do Endorphins make you happy? When you exercise, your body releases chemicals called endorphins. These endorphins interact with the receptors in your brain that reduce your perception of pain. Endorphins also trigger a positive feeling in the body, similar to that of morphine. How can I increase serotonin and dopamine naturally? Here are the […]
What does the correlation coefficient tell a researcher?
What does the correlation coefficient tell a researcher? The correlation coefficient, often expressed as r, indicates a measure of the direction and strength of a relationship between two variables. When the r value is closer to +1 or -1, it indicates that there is a stronger linear relationship between the two variables. Which correlation coefficient […]
What do Democrats believe about social issues?
What do Democrats believe about social issues? The modern Democratic Party emphasizes social equality and equal opportunity. Democrats support voting rights and minority rights, including LGBT rights. What were the political parties in the 1790s? It featured two national parties competing for control of the presidency, Congress, and the states: the Federalist Party, created largely […]
Who is responsible for the death of the Tainos?
Who is responsible for the death of the Tainos? When las Casas wrote this in 1542, there were only 200 Taíno left on Hispaniola. Across the Caribbean, he claimed the Spanish were responsible for the deaths of 12 to 15 million indigenous people. Who was guilty of the Taino genocide? As Columbus’ mens’ representatives closed […]
In what ways did Thomas Paine argue for independence in common sense?
In what ways did Thomas Paine argue for independence in common sense? He argued for two main points: (1) independence from England and (2) the creation of a democratic republic. Paine avoided flowery prose. He wrote in the language of the people, often quoting the Bible in his arguments. Most people in America had a […]
What type of reaction is CaCO3 CaO CO2?
What type of reaction is CaCO3 CaO CO2? (a) Decomposition: A substance breaks down to smaller species. [e.g. CaCO3(s) → CaO(s) + CO2(g) Decomposition of limestone to calcium oxide (quicklime) and carbon dioxide on heating.] What can an arrow in a chemical reaction be translated to mean check all that apply? Answer: Explanation: The arrow […]
How did Athens and Sparta defeat the Persian Empire?
How did Athens and Sparta defeat the Persian Empire? They were sure of victory. However, the Athenian ships, called triremes, were fast and maneuverable. They rammed into the sides of the large Persian ships and sunk them. They soundly defeated the Persians causing Xerxes to retreat back to Persia. When did Athens and Sparta defeat […]
What is the Vitruvian theory?
What is the Vitruvian theory? It was a study of the proportions of the human body as described by Vitruvius, a Roman architect from the first century B.C. Based on his observations of European people of his day, Leonardo believed that arm span was equal to height in a perfectly proportioned body. Why does Leonardo […]
What were some of the cultural contributions of ancient Egypt?
What were some of the cultural contributions of ancient Egypt? What were some of the cultural contributions of the ancient Egyptians? The hieroglyphic writing system appears on the walls of temples and in tombs. Pyramids, temples and monuments testify to the architecture and art of the Egyptians. The Egyptians also had results in mathematics. Which […]
What happened as a result of Cortes defeating the Aztecs?
What happened as a result of Cortés defeating the Aztecs? After a three-month siege, Spanish forces under Hernán Cortés capture Tenochtitlán, the capital of the Aztec empire. Cortés’ men leveled the city and captured Cuauhtémoc, the Aztec emperor. What was the result of Cortes? Hernán Cortés was a Spanish conquistador who explored Central America, overthrew […]