Problem:OPTIONS:
- keratin
- vacuum
- four limbs
- energy
- cold
- engines
- magic
- heat

Fact 1: Thick fur can be used for keeping warm. Fact 2: Carpet beetle larvae feed on the keratin and chitin commonly found in wool, fur, or feathers. Given the two facts above, what can be used for keeping warm?
****
A: keratin

Fact 1: Cells cannot survive without oxygen. Fact 2: Plants breathe oxygen into the atmosphere. Given the two facts above, cells cannot survive without plants breathing into what?
OPTIONS:
- carbon dioxide
- seas
- Sulfur dioxide
- lungs
- water vapor
- atmosphere
- water
- water tanks
atmosphere

Fact 1: Menopause occurs when menstruation stops occurring, usually in middle adulthood. Fact 2: Lupron stops estrogen production causing fibroids to shrink in size and menstruation usually stops. Given the two facts above, lupron usually brings on ?
OPTIONS:
- Dehydration
- prostate cancer
- Allergies
- anemia
- increased insulin production
- menopause
- enhanced fertility
- heat produced

Answer: menopause

Question: Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: Coral is made of the exoskeletons of many thousands of tiny marine animals called polyps. Given the two facts above, coral reefs are made up of the exoskeletons of thousands of what?
OPTIONS:
- Absorb light
- scarce resources
- Chlorophyll
- tiny polyps
- to stay warm
- animals
- salt and water.
- graptolites
Answer: tiny polyps

input with options: Fact 1: Nectar is used for attracting pollinators by plants. Fact 2: The birds enthusiastically sought nectar. Given the two facts above, what helps pollinates plants?
OPTIONS:
- Birds
- A quiet location
- animals
- Bats
- A sandy ground
- Severe thunderstorms
- insects
- Bees
output: Birds

Problem: OPTIONS:
- heat energy
- movement
- metriculation
- Energy
- fallopian tubes
- ejaculation
- kinetic energy
- sperm
Q: Fact 1: Ejaculation occurs when muscle contractions propel sperm from the epididymes. Fact 2: Sperm motility is the ability of the sperm to move. Given the two facts above, what do muscle contractions give the ability to happen?
Answer:
ejaculation