question: Write a question you would see in a school textbook. OPTIONS:
- magnetism
- sound
- light
- friction
answer: A car skids along the road and smoke appears to be coming from under the tires. The heat that produces the smoke is caused by

question: Write a question you would see in a school textbook. OPTIONS:
- reduce the cost of the watch.
- provide an energy source for the watch.
- make the watch more attractive.
- stop the watch from speeding up.
answer: A student examines a new watch design. The watch has a small solar cell on its face. The main function of the solar cell is to

question: Write a question you would see in a school textbook. OPTIONS:
- brain, spinal cord, and eyes
- lungs, esophagus, and heart
- mouth, stomach, and gallbladder
- ovaries, uterus, and fallopian tubes
answer:
The human body is composed of different systems made of specialized cells, tissues, and organs. Each of these structures has a specific function that aids in the survival of the human species. Which organs are used in reproduction?