Ques:Q: Lactose intolerance is a condition characterized by indigestion caused by this? Read this paragraph and choose the correct option from the provided answers: Small Intestine: Lactose Intolerance Lactose intolerance is a condition characterized by indigestion caused by dairy products. It occurs when the absorptive cells of the small intestine do not produce enough lactase, the enzyme that digests the milk sugar lactose. In most mammals, lactose intolerance increases with age. In contrast, some human populations, most notably Caucasians, are able to maintain the ability to produce lactase as adults. In people with lactose intolerance, the lactose in chyme is not digested. Bacteria in the large intestine ferment the undigested lactose, a process that produces gas. In addition to gas, symptoms include abdominal cramps, bloating, and diarrhea. Symptom severity ranges from mild discomfort to severe pain; however, symptoms resolve once the lactose is eliminated in feces. The hydrogen breath test is used to help diagnose lactose intolerance. Lactose-tolerant people have very little hydrogen in their breath. Those with lactose intolerance exhale hydrogen, which is one of the gases produced by the bacterial fermentation of lactose in the colon. After the hydrogen is absorbed from the intestine, it is transported through blood vessels into the lungs. There are a number of lactose-free dairy products available in grocery stores. In addition, dietary supplements are available. Taken with food, they provide lactase to help digest lactose. Choices: - fried products - raw products - pasteurized products - dairy products A:

Ans:dairy products
-----
Ques:Q: What is indicated by the ratio of the output force to the input force in a machine? Read this paragraph and choose the correct option from the provided answers: The mechanical advantage of a machine is the factor by which the machine changes the input force. It equals the ratio of the output force to the input force. A wheel and axle may either increase or decrease the input force, depending on whether the input force is applied to the axle or the wheel. Choices: - momentum - magnetic force - man hours - mechanical advantage A:

Ans:mechanical advantage
-----
Ques:Q: All of the living things in an area and the nonliving environment together make up what? Read this paragraph and choose the correct option from the provided answers: An ecosystem consists of all the living things in a given area, together with the nonliving environment. The nonliving environment includes water, sunlight, and other physical factors. Choices: - biosphere - biome - taiga - ecosystem A:

Ans:ecosystem
-----
Ques:Q: What device measures current that flows through wire? Read this paragraph and choose the correct option from the provided answers: The device in the circuit in Figure above is an ammeter. It measures the current that flows through the wire. The faster the magnet or coil moves, the greater the amount of current that is produced. If more turns were added to the coil, this would increase the strength of the magnetic field as well. If the magnet were moved back and forth repeatedly, the current would keep changing direction. In other words, alternating current would be produced. This is illustrated in Figure below . Choices: - protractor - resistor attachment - Geiger counter - ammeter A:

Ans:
ammeter
-----