What nationality has type A blood? According to the American Red Cross, the following statistics show the most common blood types in the U.S.: African American: 47% O-positive, 24% A-positive, and 18% B-positive. Latin American: 53% O-positive, 29% A-positive, and 9% B-positive. Asian: 39% O-positive, 27% A-positive, and 25% B-positive. Does blood type determine fertility? […]
Why can psychology be considered a science?
Why can psychology be considered a science? Psychology is a science because it follows the empirical method. The scientific status of any endeavor is determined by its method of investigation, not what it studies, or when the research was done, and certainly not by who did the investigation. All sciences use the empirical method. What […]
What is the difference between thermal energy and temperature and heat?
What is the difference between thermal energy and temperature and heat? What is the difference between temperature, thermal energy, and heat? The term temperature refers to the average amount of heat or the motion energy of particles in a substance. It measures the hotness and coldness of a substance. Thermal energy is the total motion […]
What was early Autotroph called?
What was early Autotroph called? Photoautotrophs What is an example of an Autotroph? Algae, along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis. Why are humans referred […]
How do I make sure everyone has clean water?
How do I make sure everyone has clean water? 5 ways to improve water quality and access to water Improve sanitation facilities by providing toilets and latrines that flush into a sewer or safe enclosure. Promote good hygiene habits through education. Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground […]
What happens if you put too many stamps on an envelope?
How much is Alaska worth today?
How much is Alaska worth today? The Alaskan Purchase Today, Alaska is, of course, worth much more than that. The state encompasses 586,412 square miles or more than 375 million acres. 2 Even at a cost of just $100 per acre, that would equate to more than $37 billion. How much does Alaska sell for? […]
Who is known as the father of modern astronautics?
Who is known as the father of modern astronautics? For his ideas, careful research, and great vision, Tsiolkovsky has been called the Father of Modern Astronautics. Early in the 20th century, an American, Robert H. Goddard (1882-1945), conducted a variety of practical experiments in rocketry. When did Russia put a man in space? A Is […]
How many red blood cells and white blood cells are in a single drop of blood?
Can two persons have same voice?
Can two persons have same voice? Although some people might sound quite a bit alike, no two voices are ever exactly alike. We each have a unique voice because so many factors work together to produce that voice. The pitch of your voice is largely determined by the length and tension of your vocal cords. […]