Answer to Question 1
ANS: Bottled water is more costly (about 1 to 4 per gallon. and though generally safe, some bottled water is not tested for contaminants. Bottled water does not have to meet the same strict standards as tap water. It may not contain fluoride, which is needed to prevent tooth decay.
Answer to Question 2
ANS: Water is a very important substance in the body. It (1. maintains fluid balance inside the body; (2. acts as a universal solvent (a liquid in which substances dissolve); (3. as part of blood, it helps transport oxygen, nutrients, and other important substances to your cells and transports waste products away from your cells; (4. as part of lymph, it helps transport proteins back to the bloodstream, and transports wastes and microbes through cleaning stations called lymph nodes before the lymph returns to the blood; (5. aids in temperature regulation by absorbing and releasing heat; (6. acts as a lubricant to joints, eyes, and gastrointestinal tract; and (7. is part of the fluid that surrounds certain organs and a developing fetus, protecting them from harm.
These older adults are participating in an exercise class at their assisted-living facility
Release of ordered water favors formation of an enzyme-substrate complex
Both humans and apes readily engage in learned imitative behavior.
This severely corroded water pump could not circulate enough coolant to keep the engine cool. As a ...
Kids/ friends playing together
Water Molecule