input: OPTIONS:
- internal system
- interior system
- shell system
- organ system Now, answer this question: Answer the following question given this paragraph: Organs are organized into organ systems such as the skeletal and muscular systems. Q: Skeletal and muscular are examples of what type of system? A:
A:
output: organ system

Answer the following question given this paragraph: Besides entertaining a cat, laser light has many other uses. One use is carrying communication signals in optical fibers. Sounds or pictures are encoded in pulses of laser light, which are then sent through an optical fiber. All of the light reflects off the inside of the fiber, so none of it escapes. As a result, the signal remains strong even over long distances. More than one signal can travel through an optical fiber at the same time, as you can see in the Figure below . Optical fibers are used to carry telephone, cable TV, and Internet signals. Q: Sounds or pictures can be encoded in pulses of what, which are then sent through an optical fiber? A:

OPTIONS:
- kinetic energy
- microwaves
- quasars
- laser light

Answer: laser light

Problem: OPTIONS:
- deviation
- focal point
- regression
- estimation
Q: Answer the following question given this paragraph: Estimation, as used in measurement, is the process of referencing a physical quantity in terms of a calibration or reference point. All measurement devices have reference marks of some kind. Q: A reference point is used in measurement to make what? A:
Answer: estimation

Problem:OPTIONS:
- thymus
- pituitary gland
- thyroid gland
- pineal gland

Answer the following question given this paragraph: Q: What is a primary source of the hormone melatonin? A:
****
A: pineal gland

Answer the following question given this paragraph: Copper is a good conductor of electricity. That's why electric wires are often made of copper. They are covered with a protective coating of plastic, which does not conduct electricity. Q: What type of metal is a good conductor of electricity? A:
OPTIONS:
- Tin
- Aluminium
- zinc
- copper
copper

Answer the following question given this paragraph: Q: Animal cells grow mainly by synthesizing protein-rich cytoplasm, a process that is described as expensive in what way? A:
OPTIONS:
- calorically
- synthetically
- time spent
- metabolically

Answer:
metabolically