input: OPTIONS:
- wave sound
- wave speed
- wave harmfulness
- wave size Now, answer this question: Answer the following question given this paragraph: Wave amplitude and wavelength are two important measures of wave size. Q: Wave amplitude and wavelength are two important measures of what? A:
A:
output: wave size

Answer the following question given this paragraph: Chemotrophic organisms break down either organic or inorganic molecules to supply energy for the cell. Some chemotrophic organisms can also use their organic energy-supplying molecules as a carbon supply, which would make them chemoheterotrophs. Q: Which organisms break down either organic or inorganic molecules to supply energy for the cell? A:

OPTIONS:
- photoreactive organisms
- asexual organisms
- spicule organisms
- chemotrophic organisms

Answer: chemotrophic organisms

Problem: OPTIONS:
- Australia
- North America
- Africa
- antarctica
Q: Answer the following question given this paragraph: Honeybees are one of the most well-known insects on the planet. Bees are naturalized on every continent except Antarctica. Honeybees have a highly developed social structure and depend on their community, or colony, for survival, with a colony containing up to 20,000 bees. When bees search plants for nectar, pollen sticks to the fuzzy hairs that cover their hind legs. At the next flower, some of the pollen rubs off and fertilizes that flower. In this way, bees help improve fruit production. Bees pollinate an estimated 130 different varieties of fruit, flowers, nuts and vegetables in the United States alone. Farmers obviously depend on bees to pollinate crops, such as fruit and nuts, but in recent years thousands of bee colonies have disappeared. This could be a devastating issue for farmers. Can anything be done? Meet two Northern California researchers looking for ways to make sure we always have bees to pollinate crops at http://www. kqed. org/quest/television/better-bees-super-bee-and-wild-bee . Q: Bees are naturalized on every continent except which? A:
Answer: antarctica

Problem:OPTIONS:
- they grow
- they bounce
- they stop suddenly
- they burn

Answer the following question given this paragraph: Did you ever see a meteor shower, like the one in Figure below ? Meteors burn as they fall through the mesosphere. The space rocks experience friction with the gas molecules. The friction makes the meteors get very hot. Many meteors burn up completely in the mesosphere. Q: What happens to meteors as they fall through the mesosphere? A:
****
A: they burn

Answer the following question given this paragraph: The Dutch scientist Christiaan Huygens (16291695) developed a useful technique for determining in detail how and where waves propagate. Starting from some known position, Huygens's principle states that: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the same speed as the wave itself. The new wavefront is a line tangent to all of the wavelets. Figure 27.5 shows how Huygens's principle is applied. A wavefront is the long edge that moves, for example, the crest or the trough. Each point on the wavefront emits a semicircular wave that moves at the propagation speed v . These are drawn at a time t later, so that they have moved a distance s = vt . The new wavefront is a line tangent to the wavelets and is where we would expect the wave to be a time t later. Huygens's principle works for all types of waves, including water waves, sound waves, and light waves. We will find it useful not only in describing how light waves propagate, but also in explaining the laws of reflection and refraction. In addition, we will see that Huygens's principle tells us how and where light rays interfere. Q: Dutch scientist christiaan huygens' principle of what states that every point on a wavefront is a source of wavelets that spread out in the forward direction at the speed of the wave itself? A:
OPTIONS:
- electromagnetic dynamics
- energy propagation
- wave dynamics
- wave propagation
wave propagation

Answer the following question given this paragraph: A cell that does not have a rigid cell wall (such as a red blood cell), will swell and lyse (burst) when placed in a hypotonic solution. Cells with a cell wall will swell when placed in a hypotonic solution, but once the cell is turgid (firm), the tough cell wall prevents any more water from entering the cell. When placed in a hypertonic solution, a cell without a cell wall will lose water to the environment, shrivel, and probably die. In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a process called plasmolysis. Animal cells tend to do best in an isotonic environment, plant cells tend to do best in a hypotonic environment. This is demonstrated in Figure below . Q: The plasma membrane pulls away from the cell wall as it shrivels. what is this process called? A:
OPTIONS:
- sporozoans
- fluctuations
- osmosis
- plasmolysis

Answer:
plasmolysis