Answer the following question given this paragraph: Sponges are filter feeders. They pump water into their body through their pores. The water flows through a large central cavity called the spongocoel (see Figure above ). As the water flows by, specialized collar cells filter out food particles such as bacteria. Collar cells have tiny hairs that trap the particles. They also have a flagellum that whips the water and keeps it moving. Once the food is trapped, the collar cells digest it (see Figure below ). Cells called amebocytes also help digest the food. They distribute the nutrients to the rest of the body as well. Finally, the water flows back out of the body through an opening called the osculum. As water flows through the sponge, oxygen diffuses from the water to the sponge's cells. The cells also expel wastes into the water for removal through the osculum. Q: Filter feeders, such as sponges, pump water into their body through what structures? A:

OPTIONS:
- fibers
- lungs
- valves
- pores

Answer: pores

Problem: OPTIONS:
- momentum
- velocity
- friction
- repulsion
Q: Answer the following question given this paragraph: The strong force predominates and can cause nuclei of complex atoms with many protons to be stable. The electric force of repulsion is responsible for fission, the breaking apart of nuclei, and therefore also for atom bombs and nuclear power. A form of fission where a helium nucleus is a product, is called alpha radiation. The actions of the weak force give rise to beta radiation. A change in nuclear energy can also give rise to gamma radiation , high energy electromagnetic waves. Particles that emit alpha radiation, beta radiation, and gamma radiation go through the process of radioactive decay, which causes the heating of the molten core of the earth, and has even played a role in the mutations in our evolutionary history. Fission and fusion, the latter occurring when light nuclei combine to form new elements, are accompanied by copious amounts of gamma radiation. These processes often produce radioactive nuclei; in nature these radioactive nuclei were forged in the explosive deaths of ancient stars. Q: What electrical force is responsible for fission? A:
Answer: repulsion

Problem:OPTIONS:
- tumescence
- rays
- photosynthesis
- incandescence

Answer the following question given this paragraph: Most of the visible light on Earth comes from the sun. The sun and other stars produce light because they are so hot. They glow with light due to their extremely high temperatures. This way of producing light is called incandescence . Incandescent light bulbs also produce light in this way. When electric current passes through a wire filament inside an incandescent bulb, the wire gets so hot that it glows. Do you see the glowing filament inside the incandescent light bulb in the Figure below ?. Q: The way in which the sun produces light is called what? A:
****
A: incandescence

Answer the following question given this paragraph: Tropical wet climates occur at or very near the Equator. They have high rainfall year round. Tropical rainforests ( FIgure below ) grow in this type of climate. Q: Tropical rainforests are an example of a climate that occurs near what? A:
OPTIONS:
- poles
- deserts
- tundras
- equator
equator

Answer the following question given this paragraph: When magma heats groundwater, it may come to the surface as a hot spring or a geyser. Q: When magma heats groundwater, it may come to the surface as a hot spring or a what? A:
OPTIONS:
- pond
- cave
- volcano
- geyser

Answer: geyser

input with options: Answer the following question given this paragraph: Atoms within a graphite layer are bonded together tightly by the and bonds; however, the forces between layers are weak. London dispersion forces hold the layers together. To learn more, see the discussion of these weak forces in the chapter on liquids and solids. The weak forces between layers give graphite the soft, flaky character that makes it useful as the so-called "lead" in pencils and the slippery character that makes it useful as a lubricant. The loosely held electrons in the resonating bonds can move throughout the solid and are responsible for the electrical conductivity of graphite. Other forms of elemental carbon include carbon black, charcoal, and coke. Carbon black is an amorphous form of carbon prepared by the incomplete combustion of natural gas, CH4. It is possible to produce charcoal and coke by heating wood and coal, respectively, at high temperatures in the absence of air. Recently, new forms of elemental carbon molecules have been identified in the soot generated by a smoky flame and in the vapor produced when graphite is heated to very high temperatures in a vacuum or in helium. One of these new forms, first isolated by Professor Richard Smalley and coworkers at Rice University, consists of icosahedral (soccerball-shaped) molecules that contain 60 carbon atoms, C60. This is buckminsterfullerene (often called bucky balls) after the architect Buckminster Fuller, who designed domed structures, which have a similar appearance (Figure 18.22). Q: What is the amorphous form of carbon prepared by the incomplete combustion of natural gas? A:
OPTIONS:
- liquid black
- dioxide black
- dark black
- carbon black
output:
carbon black