Q: What is the outer layer of an axon that acts like a layer of insulation, similar to the plastic that encases an electrical cord? A:
OPTIONS:
- lipids sheath
- nerve sheath
- layer sheath
- myelin sheath
myelin sheath

Q: What happens to the volume of the gas when temperature increases but amount of gas and its pressure are constant? A:
OPTIONS:
- nothing
- volume remains constant
- volume decreases
- volume increases

Answer: volume increases

Question: Q: A machine is any device that makes work easier by doing what? A:
OPTIONS:
- moving things
- changing molecules
- removing barriers
- changing a force
Answer: changing a force

input with options: Q: What parts of comets make them easy to see? A:
OPTIONS:
- arcs and tails
- novas and tails
- craters and tails
- comas and tails
output: comas and tails

Q: Q: Predators can replace what tool in agriculture. A:

OPTIONS:
- harvesters
- fertilizer
- irrigators
- pesticides

A: pesticides

Q: An alloy is a mixture of metals that has bulk metallic properties different from those of its what? A:
OPTIONS:
- system elements
- nuclear elements
- mineral elements
- constituent elements
constituent elements