Answer the following question given this paragraph: Viruses are so small that they can be seen only with an electron microscope. Before electron microscopes were invented, scientists knew viruses must exist. How did they know? They had demonstrated that particles smaller than bacteria cause disease. Q: They had demonstrated that particles smaller than bacteria cause what? A:
OPTIONS:
- blood
- flight
- damage
- disease
disease

Answer the following question given this paragraph: Q: What debated therapy offers a potential method for replacing neurons lost to injury or disease? A:
OPTIONS:
- cell production therapy
- stem cell reduction
- cell duplication
- stem cell therapy

Answer: stem cell therapy

Question: Answer the following question given this paragraph: Two important concepts associated with the ecosystem are niche and habitat. Q: Two important concepts, niche and habitat, are associated with what? A:
OPTIONS:
- natural selection
- plant
- water
- ecosystem
Answer: ecosystem

input with options: Answer the following question given this paragraph: Earth is not the only active planetary body in the solar system. Io, one of Jupiter's moons, is home to fantastic volcanic eruptions. Volcanism is much hotter than on Earth. Lava curtains and fountains are common. In this color image, the Galileo spacecraft spotted two volcanic plumes. One is spewing high above the planet on the horizon. The second is near he boundary between day and night. Besides being hotter than Earth's volcanism, eruptions on Io have a different composition. They are mostly sulfur!. Q: What planet in our solar system has a moon with volcanic activity? A:
OPTIONS:
- Mars
- Venus
- Saturn
- jupiter
output: jupiter

Q: Answer the following question given this paragraph: electrolysis2NaOH ( aq )+Cl2 ( g )+H 2 ( g ) Bromine is much less abundant than fluorine or chlorine, but it is easily recovered from seawater, which contains about 65 mg of Br per liter. Salt lakes and underground brines are even richer sources; for example, the Dead Sea contains 4 g of Br per liter. Iodine is the least abundant of the nonradioactive halogens, and it is a relatively rare element. Because of its low electronegativity, iodine tends to occur in nature in an oxidized form. Hence most commercially important deposits of iodine, such as those in the Chilean desert, are iodate salts such as Ca(IO3)2. The production of iodine from such deposits therefore requires reduction rather than oxidation. The process is typically carried out in two steps: reduction of iodate to iodide with sodium hydrogen sulfite, followed by reaction of iodide with additional iodate: Equation 22.41. Q: Bromine is much less abundant than fluorine or chlorine, but it is easily recovered from seawater, which contains about 65 mg of br per what? A:

OPTIONS:
- pound
- foot
- gallon
- liter

A: liter

Answer the following question given this paragraph: Primates have five digits (fingers or toes) on each extremity. Unlike the hooves of horses or the paddles of whales, the digits of primates are relatively unspecialized. Therefore, they can be used to do a variety of tasks, including grasping branches and holding tools. Q: How many digits do primates have on each extremity? A:
OPTIONS:
- ten
- four
- three
- five
five