What is the purpose of a scientific theory? Scientific theories are testable and make falsifiable predictions. They describe the causes of a particular natural phenomenon and are used to explain and predict aspects of the physical universe or specific areas of inquiry (for example, electricity, chemistry, and astronomy). Why are scientific theories an important part […]
What receptor is in the ear?
What receptor is in the ear? Deep inside the head is the inner ear, which contains 3 small, fluid-filled structures called the semicircular canals (ducts). Each duct has a swelling at the end called the ampulla. Within the ampulla are tiny “balance” receptors called crista. Do ears have receptors? Although hearing begins with the ear […]
What market structure is the most difficult to enter?
What market structure is the most difficult to enter? Terms in this set (14) Monopoly (impossible entry) Oligopoly (difficult entry) Monopolistic competition (relatively easy entry) Perfect competition (very easy entry) Which answer correctly lists the market structures from the most competition to the least? The correct sequence of the market structure from most to least […]
How did the Monroe Doctrine impact foreign policy?
How did the Monroe Doctrine impact foreign policy? Although initially disregarded by the great powers of Europe, the Monroe Doctrine became a mainstay of U.S. foreign policy. In 1823 U.S. President James Monroe proclaimed the U.S. protector of the Western Hemisphere by forbidding European powers from colonizing additional territories in the Americas. How did the […]
Why did the colonies need to create an army?
Why did the colonies need to create an army? The Continental Army was formed to secure American colonists’ independence from Great Britain. This army courageously fought what became known as the American Revolutionary War and claimed victory for the newly formed United States. The Revolutionary War began in 1775. Why was the colonial army unable […]
What should never be used during a fire evacuation?
What should never be used during a fire evacuation? Never use an elevator in the case of a fire. Fire will short-circuit the elevators, causing anyone trapped inside to become stuck and unable to exit. Elevator shafts act as a natural chimney, this means that all smoke and heat will rise through the shaft, harming […]
How does an experiment differ to an observational study?
How does an experiment differ to an observational study? In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment. […]
Did the pilgrims celebrate Thanksgiving every year?
Did the pilgrims celebrate Thanksgiving every year? Myth: The first Thanksgiving was in 1621 and the pilgrims celebrated it every year thereafter. Fact: The first feast wasn’t repeated, so it wasn’t the beginning of a tradition. The feast was a secular celebration, so it never would have been considered a thanksgiving in the pilgrims minds. […]
What are the four principles of ethical speech?
What are the four principles of ethical speech? Integrity in the subject matter. Respect for others. Dignity in conduct. Truthfulness in message. What are the ethics of public speaking? To speak ethically is to use your own original speech content. If you use any substantiating facts or passages from another, you must give appropriate attribution […]
What is the correct order of blood flow in the pulmonary circulation?
What is the correct order of blood flow in the pulmonary circulation? Correct answer: Pulmonary circulation is ordered from the right ventricle to the pulmonary arteries, through the lungs, to the pulmonary veins, and reenters the heart in the left atrium. How does blood flow through the pulmonary circulation? The deoxygenated blood shoots down from […]