When an aerobatic plane flies upside down, how does the fuel get to the engine? Explore More Advertisement How Your Lungs Work By: Craig Freudenrich, Ph.D. The heart and lungs work together to make sure your body has the oxygen-rich blood it needs. Callista Images/Getty Images You br...
Our lungs are the organs that allow us to breathe. When we breathe in—or inhale—our lungs fill with air which contains oxygen. When we breathe out—or exhale—a gas called carbon dioxide flows out of our lungs. We continue our quest to explore with our hands as we make a model of ...
The Human Body:The human body is made up of many different systems that all work cooperatively with one another. These systems include the Muscular System, the Skeletal System, the Digestive System, the Respiratory System, the Circulatory System, and the Nervous System. Book Selection:The Body A...
The crunch of cardboard is the only sound as the cheap Pizza Time logo comes in and goes out of the foreground. They hear a truck rattling closer. Through the window, they see a STREET FUMIGATION TRUCK spewing gas as it passes by. The fog rolls closer to the window. KI-JUNG (to ...
Your dehumidifier does pretty much the same thing. Most dehumidifiers can be broken down into five component parts: Fan Compressor -- This compresses and expands a refrigerant gas like freon to cool the dehumidifier's coils. (See How Air Conditioners Work for a more detailed explanation of ...
However, the use of anesthesia didn't become widespread until the 1840s, when a dentist demonstrated that ether gas could be used to knock people out for surgery and ease their pain. But how does anesthesia work, exactly? Local anesthesia Different types of anesthesia are used for ...
What are the four most abundant elements by mass in the human body? Does this make sense? Why? What is the main cause of climate change? State and define five physiological properties of chemicals. Give two examples of elements and compounds that exist in the human body and e...
The Mammalian Dive Response: How Your Body Does Incredible Things Underwater Imagine you are a freediver. You relax your mind in preparation. Then, you take one last deep inhalation, plus extra sips of air, and slip underwater. At first, you work harder to swim lower, as the water’s ...
Fiber is derived from plant cells which cannot be digested by the human body. Soluble fiber obtained from fruits and vegetables provides benefits like healthy skin and hair. Insoluble fiber obtained from legumes and whole wheat grains provides these benefits: ...
52. What does the passage say about the bug that produces the important enzyme? A) It has a natural ability to consume plastics. B) It is a bacterium that reproduces at a high rate. C) It is essential to the recycling of plastic bottles. D) It has a chemical structure unknown...