input: OPTIONS:
- water cycle
- metamorphic cycle
- circadian cycle
- carbon cycle Now, answer this question: Answer the following question given this paragraph: Roundworms may be free-living or parasitic organisms. Free-living worms are found mainly in freshwater habitats. Some live in moist soil. They generally feed on bacteria, fungi, protozoa, or decaying organic matter. By breaking down organic matter, they play an important role in the carbon cycle. Q: By breaking down organic matter, roundworms play an important role in which cycle? A:
A:
output: carbon cycle

Answer the following question given this paragraph: Omnivores are heterotrophs that consume both plants and animals. They include crows and human beings. The grizzly bears pictured in Figure below are also omnivores. Q: What do omnivores eat? A:

OPTIONS:
- only animals
- only seafood
- only plants
- plants & animals

Answer: plants & animals

Problem: OPTIONS:
- hydration
- reactions
- carbonation
- photosynthesis
Q: Answer the following question given this paragraph: Photosynthesis ceases when leaves wilt, mainly because. Q: When leaves wilt, what plant process ceases? A:
Answer: photosynthesis

Problem:OPTIONS:
- battery
- capacitor
- harmonic
- resistor

Answer the following question given this paragraph: Resistors in an AC Circuit Just as a reminder, consider Figure 23.47, which shows an AC voltage applied to a resistor and a graph of voltage and current versus time. The voltage and current are exactly in phase in a resistor. There is no frequency dependence to the behavior of plain resistance in a circuit:. Q: The voltage and current are exactly in phase in a what? A:
****
A: resistor

Answer the following question given this paragraph: When light passes from one medium to another, it changes speed. For example, when light passes from air to glass, it slows down. If light strikes a sheet of glass at a 90 angle, or perpendicular to the glass, it slows down but still passes straight through the glass. However, if light enters the glass at an angle other than 90, the light bends as it slows down. The bending of light as it changes speed in a new medium is called refraction . The Figure below shows how refraction occurs. Notice that the speed of light changes again as it passes from the glass back to the air. In this case, the speed increases, and the ray of light resumes its initial direction. For a more detailed explanation of refraction, watch this video: http://www. youtube. com/watch?v=8RM46yvDOHI . Q: When light passes from one medium to another, it changes what? A:
OPTIONS:
- color
- temperature
- density
- speed
speed

Answer the following question given this paragraph: According to the kinetic theory, particles of matter are in constant motion. The energy of motion is called kinetic energy. Q: What is the energy of motion called? A:
OPTIONS:
- inertia
- harmonic energy
- stasis
- kinetic energy

Answer:
kinetic energy