input with options: Q: Which kind of vertebrates are amphibians? A:
OPTIONS:
- endothermic vertebrates
- enterococci vertebrates
- arachnids vertebrates
- ectothermic vertebrates
output: ectothermic vertebrates

Q: Q: Where are most white blood cells made? A:

OPTIONS:
- lungs
- heart tissue
- plasma
- the bone marrow

A: the bone marrow

input: OPTIONS:
- marrow
- scales
- cartilage
- compact bone Now, answer this question: Q: What makes up the dense outer layer of bones? A:
A:
output: compact bone

Q: What is the common word for potential difference in a circuit? A:

OPTIONS:
- watt
- velocity
- frequency
- voltage

Answer: voltage

Problem: OPTIONS:
- the functional cord
- the umbilical chord
- the optimal cord
- the spinal cord
Q: Q: Every peripheral nerve is connected directly or indirectly to what? A:
Answer: the spinal cord

Q: What type of sunlight inhibits vertical growth in a plant? A:

OPTIONS:
- infrared
- reduced
- indirect
- direct

Answer:
direct