Problem:OPTIONS:
- desert patina
- desert shadow
- desert rust
- desert varnish

Q: What is the term for the dark brown or black coating found on exposed desert rocks, which is formed of iron and manganese oxides? A:
****
A: desert varnish

Q: How many more times likely are men to suffer from iron overload? A:
OPTIONS:
- twenty times
- eight times
- two times
- ten times
ten times

Q: Small crustaceans exchange gases across thin areas of the cuticle; larger species have what to accomplish this? A:
OPTIONS:
- noses
- pores
- lungs
- gills

Answer: gills

Question: Q: How many dimensions can humans see in? A:
OPTIONS:
- five
- two
- one
- three
Answer: three

input with options: Q: Blood volume increases substantially during pregnancy, so that by childbirth, it exceeds its preconception volume by 30 percent, or approximately what? A:
OPTIONS:
- 2-3 liters
- 3-5 liters
- 0-1 liters
- 1-2 liters
output: 1-2 liters

Problem: OPTIONS:
- flagellum
- cell wall
- mitochondria
- cell nucleus
Q: Q: Unlike prokaryotes, eukaryotes have a what? A:
Answer:
cell nucleus