Fact 1: Competition may lead to aggressive behaviors or displays of aggression. Fact 2: Frequently their behavior is aggressively hostile. Given the two facts above, hostility can be one outcome of:?
OPTIONS:
- relocation
- behavior research
- decrease stamina
- forces
- fungi
- competition
- tolerance
- Gunshots
competition

Fact 1: Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Fact 2: Antibodies are produced to fight antigens. Given the two facts above, what do proteins fight?
OPTIONS:
- heat
- calories
- carbohydrates
- illness
- parasites
- fat
- resistance
- antigens

Answer: antigens

Question: Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: Objects to be viewed are illuminated by electrons in an electron microscope. Given the two facts above, what of the following can only be viewed by illuminating electrons? ?
OPTIONS:
- insects
- small animals
- eyelashes
- Light
- an image
- fungi
- viruses
- an object
Answer: viruses

input with options: Fact 1: Fish have a circulatory system with a two-chambered heart. Fact 2: Each side of the heart is divided up into two chambers. Given the two facts above, ish have a circulatory system with what?
OPTIONS:
- our nearest star
- divided heart
- solid, liquid, gas
- Veins and arteries.
- kinetic energy
- flow of electrons
- reducing acid rain
- matter vibrating
output: divided heart

Q: Fact 1: Evolution occurs by a process called natural selection. Fact 2: Evolution is a sequence of variation and selection. Given the two facts above, what produces variation?

OPTIONS:
- animals
- evolution
- pollen
- environment
- a doorbell
- movement
- seasons
- competition

A: evolution

Fact 1: Operating an automobile usually requires fossil fuels. Fact 2: Fossil fuels are considered non-renewable. Given the two facts above, which activity usually requires using a non-renewable resource?
OPTIONS:
- decaying trees
- fissures of hot, acidic water
- Cutting down a tree
- burning coal
- deforestation
- Drying clothes in the sun
- Powering a wind turbine
- Operating an automobile
Operating an automobile