Answer the following question given this paragraph: When bread bakes, yeast releases carbon dioxide gas, forming the small holes in bread. The gas was produced by alcoholic fermentation carried out by yeast. Q: When bread bakes, yeast releases which gas? A:
OPTIONS:
- carbon monoxide
- oxygen
- hydrogen
- carbon dioxide
carbon dioxide

Answer the following question given this paragraph: Many species use their body shape and coloration to avoid being detected by predators. The tropical walking stick is an insect with the coloration and body shape of a twig, which makes it very hard to see when it is stationary against a background of real twigs (Figure 19.15a). In another example, the chameleon can change its color to match its surroundings (Figure 19.15b). Q: Many species use their body shape and coloration to avoid being detected by what? A:
OPTIONS:
- biology
- viruses
- males
- predators

Answer: predators

Question: Answer the following question given this paragraph: When water moves into a cell by osmosis, osmotic pressure may build up inside the cell. If a cell has a cell wall, the wall helps maintain the cell's water balance. Osmotic pressure is the main cause of support in many plants. When a plant cell is in a hypotonic environment, the osmotic entry of water raises the turgor pressure exerted against the cell wall until the pressure prevents more water from coming into the cell. At this point the plant cell is turgid ( Figure below ). The effects of osmotic pressures on plant cells are shown in Figure above . Q: What type of pressure may build up inside the cell when water moves into a cell by osmosis? A:
OPTIONS:
- pleasurable pressure
- impervious pressure
- transverse pressure
- osmotic pressure
Answer: osmotic pressure

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

Q: Answer the following question given this paragraph: Muscle fibers are made mostly of protein. Q: What type of fibers are made mostly of protein in living things? A:

OPTIONS:
- organ fibers
- liver fibers
- connective tissue fibers
- muscle fibers

A: muscle fibers

Answer the following question given this paragraph: Q: What are changes in membrane potential that vary continuously with the strength of a stimulus are known as? A:
OPTIONS:
- reverse potentials
- variable potentials
- kinetic energy
- graded potentials
graded potentials