Answer the following question given this paragraph: Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a "free ride. " Hermit crabs use the shells of dead snails for homes. Q: What is the name of the symbiotic relationship in which one species benefits while the other species is not affected? Choices: - pollenation - differentiation - mutualism - commensalism A:
commensalism
Answer the following question given this paragraph: The weather map pictured below ( Figure above ) shows air pressure. The lines on the map connect places that have the same air pressure. Air pressure is measured in a unit called the millibar. Isobars are the lines that connect the points with the same air pressure. The map also shows low- and high-pressure centers and fronts. Find the cold front on the map. This cold front is likely to move toward the northeast over the next couple of days. How could you use this information to predict what the weather will be on the East Coast?. Q: What is the unit used to measure air pressure? Choices: - pounds per inch - newtons - mass - millibar A:
millibar
Q: Answer the following question given this paragraph: Any unused energy in food, whether it comes from carbohydrates, proteins, or lipids, is stored in the body as fat. An extra 3,500 Calories of energy results in the storage of almost half a kilogram (1 pound) of stored body fat. People who consistently consume more food energy then they need may become obese. Obesity occurs when the body mass index is 30.0 kg/m 2 or greater. Body mass index (BMI) is an estimate of the fat content of the body. It is calculated by dividing a person's weight (in kilograms) by the square of the person's height (in meters). Obesity increases the risk of health problems such as type 2 diabetes and hypertension. Q: Any unused energy in food, whether it comes from carbohydrates, proteins, or lipids, is stored in the body where? Choices: - kidneys - spleen - bones - fat A:
A: fat
Question: Answer the following question given this paragraph: Salmon Larva. This newly hatched salmon larva doesn't look very fish-like. The structure hanging from the larva is the yolk sac. Q: What is the structure which hangs from a newly hatched salmon larva? Choices: - air sac - liquid sac - stomach sac - yolk sac A:
Answer: yolk sac
*Question*
Answer the following question given this paragraph: Nuclear power plants use the energy they produce to heat water. The water turns into steam, which causes a turbine to spin. This in turn produces electricity. Q: What kind of power plant uses energy to heat water that becomes steam and spins turbines? Choices: - hydroelectric - coal - wind - nuclear power plants A:
**Answer**
nuclear power plants
*Question*
Answer the following question given this paragraph: Refraction The changing of a light ray's direction (loosely called bending) when it passes through variations in matter is called refraction. Speed of Light The speed of light c not only affects refraction, it is one of the central concepts of Einstein's theory of relativity. As the accuracy of the measurements of the speed of light were improved, c was found not to depend on the velocity of the source or the observer. However, the speed of light does vary in a precise manner with the material it traverses. These facts have far-reaching implications, as we will see in Special Relativity. It makes connections between space and time and alters our expectations that all observers measure the same time for the same event, for example. The speed of light is so important that its value in a vacuum is one of the most fundamental constants in nature as well as being one of the four fundamental SI units. Q: The changing of a light ray's direction (loosely called bending) when it passes through variations in matter is called this? Choices: - wavelength - resonance - vibration - refraction A:
**Answer**
refraction