Problem:OPTIONS:
- lungs
- an organism's body
- human
- barnacles
- fleas and ticks
- density
- sensory neurons
- bacteria

Fact 1: Some parasites live on the surface of their host. Fact 2: Fleas and ticks are parasites. Given the two facts above, what sometimes lives on the surface of their host?
****
A: fleas and ticks

Fact 1: Nuclear reactions in stars causes stars to produce light. Fact 2: Nuclear reactions convert mass to energy. Given the two facts above, what is something that converts mass to energy?
OPTIONS:
- chemicals
- pigeons
- Cooking
- Cars
- sugar
- light
- energy
- a star
a star

Fact 1: Platypus females lay their eggs in a burrow. Fact 2: Many species dig burrows in the ground. Given the two facts above, where do platypus females lay their eggs?
OPTIONS:
- swea
- tree
- bushes
- fields
- ground
- autumn
- plate
- holder

Answer: ground

Question: Fact 1: Temperature falls from lower to higher altitudes. Fact 2: Temperatures are cooler in the higher altitudes of the mountains. Given the two facts above, what has lower temperatures?
OPTIONS:
- peachleaf willow
- fur seals
- the Sun
- the equator
- the mountains
- aqueous solution
- solid, liquid, gas
- fire
Answer: the mountains

input with options: Fact 1: Plasma cells are activated B cells that secrete antibodies. Fact 2: Antibodies are produced to fight antigens. Given the two facts above, what do plasma cells secrete?
OPTIONS:
- Chemical energy
- h2o
- oxygen
- antigen fighters
- harmful substances
- bioaerosols
- mucus
- Organic compounds
output: antigen fighters

Problem: OPTIONS:
- harmful substances
- Organic compounds
- bacon
- cayenne
- acetic acid
- dogs
- Chlorophyll
- Calcium carbonate
Q: Fact 1: Most mollusks have shells. Fact 2: Coral reefs and shells are made of calcium carbonate. Given the two facts above, what do mollusks contain?
Answer:
Calcium carbonate