input with options: Q: Portal veins carry blood between what? A:
OPTIONS:
- chambers of the heart
- digestive organs
- arteries
- pairs of capillary beds
output: pairs of capillary beds

input with options: Q: Plant-like protists are autotrophs, meaning they make their own what? A:
OPTIONS:
- spores
- flowers
- molds
- food
output: food

input with options: Q: Carbon monoxide, radon gas, dust and pet dander are sources of what kind of pollution? A:
OPTIONS:
- noise pollution
- light pollution
- sound pollution
- indoor air pollution
output: indoor air pollution

input with options: Q: What causes eutrophication to occur? A:
OPTIONS:
- excess of decreased and other nutrients
- excess of carbonate and other nutrients
- excess of increased and other nutrients
- excess of fertilizers and other nutrients
output:
excess of fertilizers and other nutrients