Fact 1: Antigens are found on cancer cells and the cells of transplanted organs. Fact 2: An antigen is a protein that prompts an immune response to cancer cells. Given the two facts above, a protein that prompts an immune response are found where?

OPTIONS:
- the skin
- critical organs
- epidermis and dermis
- layers of fat
- Veins and arteries.
- at or near the margins
- Earth orbiting the Sun
- on cancer cells

Answer: on cancer cells

Problem: OPTIONS:
- complete
- homogenous
- grow
- allow growth
- ligt
- food
- organ
- heat or cold
Q: Fact 1: Roundworms make up the phylum Nematoda. Fact 2: Roundworm Roundworms have complete digestive tracks. Given the two facts above, what kind of digestive tracks do nematoda have?
Answer: complete

Problem:OPTIONS:
- heat energy
- heat production
- scattered light
- energy usage
- freezer burn
- movie production
- fur production
- Temperature

Fact 1: Thick fur can be used for keeping warm. Fact 2: When the body is warm, heat production is minimized. Given the two facts above, thick fur can be used for minimizing what?
****
A: heat production

Fact 1: Organisms that live in marine biomes must be adapted to the salt in the water. Fact 2: Mainly marine, some crabs live in fresh water or on land. Given the two facts above, what are some crabs adapted to?
OPTIONS:
- pain
- the environment
- heat or cold
- movement
- survival
- Cross breeding
- shopping
- Salt water
Salt water

Fact 1: When electricity flows to a light bulb , the light bulb will turn on. Fact 2: Coal-fired electric generation is a low cost source of electricity. Given the two facts above, a light bulb will turn on when something generated from what flows to it?
OPTIONS:
- energy
- gas
- sun
- SO2
- copper
- Coal
- matter
- wind

Answer: Coal

input with options: Fact 1: Corals form large colonies in shallow tropical water. Fact 2: Coral communities are found only in warm waters. Given the two facts above, shallow tropical water is what?
OPTIONS:
- porous
- low in biodiversity
- cold
- uninhabited
- pretty
- rain
- warm
- calm
output:
warm