Problem:OPTIONS:
- fins
- cilia
- flagella
- a tail

Q: What helps frogs swim during the tadpole phase? A:
****
A: a tail

Q: What type pf mining is used to obtain mineral ores that are near the surface? A:
OPTIONS:
- multi-layered mining
- function mining
- core mining
- surface mining
surface mining

Q: A notochord has in common with what vertbrate structure? A:
OPTIONS:
- trichord
- rib cage
- rip chord
- spinal cord

Answer: spinal cord

Question: Q: What protects you from pathogens and keeps you healthy? A:
OPTIONS:
- immunity system
- health system
- potent system
- immune system
Answer: immune system

input with options: Q: A doorknob and a ferris wheel are examples of what type of simple machine? A:
OPTIONS:
- ball and socket
- lever and pulley
- ball and axle
- wheel and axle
output: wheel and axle

Problem: OPTIONS:
- radiation change
- Decomposition
- contamination change
- chemical change
Q: Q: What is rusting an example of? A:
Answer:
chemical change