Problem:OPTIONS:
- division
- transfer
- reproduction
- storage

Q: What function does a vacuole do for a cell? A:
****
A: storage

Q: Exemplified by rusty iron, what process is defined as the disintegration of a material due to chemical reactions with other substances in the environment? A:
OPTIONS:
- Metal Breakdown
- magnesium
- extraction
- corrosion
corrosion

Q: Living things get energy from food in a process called respiration, which releases what gas back into the atmosphere? A:
OPTIONS:
- oxygen
- hydrogen
- nitrogen
- carbon dioxide

Answer: carbon dioxide

Question: Q: Models may be physical, conceptual, or what else? A:
OPTIONS:
- experimental
- fundamental
- theoretical
- mathematical
Answer: mathematical

input with options: Q: What are the messenger molecules of the endocrine system? A:
OPTIONS:
- neurons
- enzymes
- acids
- hormones
output: hormones

Problem: OPTIONS:
- molecules
- semi-fluids
- fluids
- gases
Q: Q: What take the shape of their container, and are relatively easy to compress? A:
Answer:
gases