Answer:
Potential and kinetic energy is in humans. For example, when I am running, I am using kinetic energy. However, when I am sitting and eating some food, then I am reserving some energy and my energy is at rest which is an example of potential energy.
Explanation:
Answer:
“Non-self” materials have proteins and other substances on their surfaces that the body doesn't recognize, called antigens.
Explanation:
A coral reef is made of thin layers of calcium carbonate. Coral polyps form a living mat over a calcium carbonate skeleton. Stony corals (or scleractinians) are the corals primarily responsible for laying the foundations of, and building up, reef structures.
Answer:
If the water is initially hot, cooled water at the bottom is denser than the hot water at the top, so no convection will occur and the bottom part will start freezing while the top is still warm. This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases.
Explanation:
