Problem:OPTIONS:
- movement
- Veins and arteries.
- competition
- Plants growth
- Animal survival
- cell division
- an organism's body
- Plant reproduction

Fact 1: Centrioles are organelles involved in cell division. Fact 2: Centrioles come in pairs. Given the two facts above, organelles that come in pairs are involved in what?
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A: cell division

Problem:OPTIONS:
- kinetic energy
- evaporation
- It accelerates
- flow of electrons
- It explodes
- It remains stationary
- The bending of a ray of light
- It reverses direction

Fact 1: If two balanced forces act on an object in opposite directions then that object will remain stationary. Fact 2: If an object is at equilibrium, then the forces are balanced. Given the two facts above, what will happen if an object is at equilibrium?
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A: It remains stationary

Problem:OPTIONS:
- toxins
- dissolved
- expelled
- dangerous
- evaporation
- uncontrolled
- soaked up
- decreased

Fact 1: The vomiting reflex is used to remove toxic material from the stomach before it is absorbed. Fact 2: If vomiting occurs, turn the victim's head so that the vomitus is expelled. Given the two facts above, what happens to vomitus so that toxic materials are removed from the stomach before they are absorbed?
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A: expelled

Problem:OPTIONS:
- an object
- heat energy
- rain or sun shine
- an electron lens
- visible energy
- movement
- electron microscope
- food and shelter

Fact 1: Aflashlight requires a source of electricity to produce light. Fact 2: Light contains energy. Given the two facts above, a flashlight needs electricity to produce what?
****
A:
visible energy