input: OPTIONS:
- ovum
- fat
- four
- p53
- two
- cut
- bone
- stem Now, answer this question: Fact 1: Fish have a circulatory system with a two-chambered heart. Fact 2: Mammals have a four-chambered heart. Given the two facts above, how many sections does a fish heart have?
A:
output: two

Fact 1: Operating an automobile usually requires fossil fuels. Fact 2: Fossil fuel pollution can cause asthma and lung problems, especially for children and the elderly. Given the two facts above, a possible downside of driving a car is?

OPTIONS:
- slow and inefficient
- more asthma in children
- split ends
- greying hair
- Plant growth is reduced
- decreases its bodily water
- balding
- Greenhouse gasses

Answer: more asthma in children

Problem: OPTIONS:
- hair
- fighting bears
- lightning
- hemp
- coat
- cooked food
- wood
- fur
Q: Fact 1: Insulated material can be used for keeping warm. Fact 2: Guard hairs protect the fur, while the fur insulates the mammal. Given the two facts above, what can be used to keep warm?
Answer: fur

Problem:OPTIONS:
- it helps plants in growing
- Burning fuel and air
- members of their own species
- people to dogs
- herbivores to carnivores
- carnivores to plants
- passenger pigeons
- predators to prey

Fact 1: Energy is passed up a food chain or web from lower to higher trophic levels. Fact 2: Energy and carbon in organic compounds passed through food chain to herbivores and carnivores. Given the two facts above, carbon in organic compounds are passed through the food web from what?
****
A: herbivores to carnivores

Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain. Fact 2: Acid rain is very bad and can hurt the environment. Given the two facts above, gases from burning coal and oil dissolving in water in the atmosphere can hurt what?
OPTIONS:
- agriculture
- people
- sun
- the past
- animals
- environment
- moon
- climate
environment

Fact 1: Cells that divide uncontrollably may form a tumor, or abnormal mass of cells. Fact 2: Tumors are either benign or malignant. Given the two facts above, how are cells that divide uncontrollably classified?
OPTIONS:
- Leptospirosis
- deadly and devastating
- harmful substances
- graptolites
- epidermis and dermis
- As benign or malignant
- metabolic reaction
- microorganisms

Answer:
As benign or malignant