Question: Q: What type of disturbance do even dominant plants depend on in many biomes? A:
OPTIONS:
- mass extinction
- radiation
- seismic force
- periodic
Answer: periodic

input with options: Q: Because heating results in a greater fraction of molecules having the necessary kinetic energy to escape the surface of the liquid, what occurs more quickly when liquid is heated? A:
OPTIONS:
- oxidation
- expansion
- absorption
- evaporation
output: evaporation

Q: Q: What do you call the daily changes in the level of ocean water? A:

OPTIONS:
- waves
- shores
- currents
- tides

A: tides

input: OPTIONS:
- cell production therapy
- stem cell reduction
- cell duplication
- stem cell therapy Now, answer this question: Q: What debated therapy offers a potential method for replacing neurons lost to injury or disease? A:
A:
output: stem cell therapy

Q: In machines that increase force, such as ramps and doorknobs and nutcrackers, what is the relation between output and input force? A:

OPTIONS:
- drop is greater
- output is smaller
- input is greater
- output is greater

Answer: output is greater

Q: Q: Which common element is the most found in living organisms? A:

OPTIONS:
- hydrogen
- oxygen
- monoxide
- carbon

A:
carbon