Problem:OPTIONS:
- furan
- sulfide
- phosphate
- benzene

Q: What is the smallest aromatic hydrocarbon? A:
****
A: benzene

Q: What do you call the hard case that surrounds the soft parts of some animals? A:
OPTIONS:
- muscles
- shell
- membrane
- exoskeleton
exoskeleton

Q: What is the water that falls from the sky called? A:
OPTIONS:
- evaporation
- condensation
- moisture
- precipitation

Answer: precipitation

Question: Q: What are the primary causes of bone fractures? A:
OPTIONS:
- overuse
- spiral impact or bending
- step impact or bending
- sideways impact or bending
Answer: sideways impact or bending

input with options: Q: Shivering and adipose tissue called brown fat are used by mammals in particular to produce what? A:
OPTIONS:
- energy
- blood
- nutrition
- heat
output: heat

Problem: OPTIONS:
- glands nerve
- larynx nerve
- gland nerve
- vagus nerve
Q: Q: Which nerve directly stimulates the contraction of skeletal muscles in the pharynx and larynx to contribute to the swallowing and speech functions? A:
Answer:
vagus nerve