Problem:OPTIONS:
- Birds
- bacteria
- pan
- nerves
- sharks
- otters
- bass
- viruses

Fact 1: Fish have a centralized nervous system with a brain. Fact 2: Fish include bass and salmon. Given the two facts above, what has a centralized nervous system with a brain?
****
A: bass

Fact 1: Antibodies are large, Y-shaped proteins that recognize and bind to antigens. Fact 2: ALL immunogens are antigens. Given the two facts above, what can antibodies (large Y-shaped proteins) recognize and bind to?
OPTIONS:
- animals
- fish
- blood types
- positive
- immunogens
- cats
- humans
- the skin
immunogens

Fact 1: If gas is heated then that gas will expand. Fact 2: If a material is heated, it expands and the density decreases. Given the two facts above, what happens to the density of a gas when heated?
OPTIONS:
- stays constant
- Temperature
- energy
- Energy.
- decreases
- nothing
- Evaporation
- increases

Answer: decreases

Question: Fact 1: Erosion can cause a landslide. Fact 2: And the erosion caused by the unimpeded flow of water is an example of unintentional change. Given the two facts above, what can cause landslides?
OPTIONS:
- The flow of water
- loose soil
- Drought
- deforestation
- Adequate subsurface drainage
- mouth of rivers
- Physical weathering
- Lack of rain
Answer: The flow of water

input with options: Fact 1: Alight bulb is used for seeing in the dark. Fact 2: Electricity can run appliances and illuminate light bulbs. Given the two facts above, what can help with seeing in the dark?
OPTIONS:
- bushes
- Eyedroppers
- Magic
- satellites
- cactuses
- Electricity
- Telescopes
- focusing a lens
output: Electricity

Problem: OPTIONS:
- bloodstream
- humans
- mitosis
- bone marrow
- organs
- Epidermis
- critical organs
- stomach
Q: Fact 1: Lymphocytes are the key cells involved in the immune response. Fact 2: Lymphocytes are produced in the bone marrow. Given the two facts above, where are the key cells involved in the immune response made?
Answer:
bone marrow