Question: Q: Food is broken into smaller particles by mastication, a process involving action by what structures? A:
OPTIONS:
- cilia
- proteins
- tonsils
- teeth
Answer: teeth

input with options: Q: Cancer involves what changes that modify cell-cycle control and alter the growth rate or progression of the cell through the cell cycle? A:
OPTIONS:
- deletions
- enhancements
- stabilization
- mutations
output: mutations

Q: Q: Some species of fish carry their fertilized eggs in their mouth until they hatch; this is called what? A:

OPTIONS:
- internal reproduction
- spawning
- schooling
- mouth brooding

A: mouth brooding

input: OPTIONS:
- field of view
- refraction
- phenomenon of reflection
- angle of reflection Now, answer this question: Q: When waves are reflected at the same angle, what is it called? A:
A:
output: angle of reflection

Q: What are the main organs of the respiratory system? A:

OPTIONS:
- ovaries
- intestines
- kidneys
- lungs

Answer: lungs

Q: Q: What type of force exists between two touching surfaces? A:

OPTIONS:
- opposing
- centrifugal
- tension
- friction

A:
friction