Fact 1: Electrical current running through a wire causes that wire to heat up. Fact 2: If the wire heats up it can damage the insulation or cause a fire. Given the two facts above, electrical current running through a wire can damage the insulation or what?

OPTIONS:
- an object
- energy barrier
- humans disturb it
- cause electrical conditioning
- cause a fire
- critical organs
- cause hair conditioning
- cause new lines

Answer: cause a fire

Problem: OPTIONS:
- tail fins
- Animal fur
- fur seals
- keratin
- nitrogen
- snow
- Epidermis
- poultry
Q: Fact 1: Hair helps to insulate and protect the body. Fact 2: Hair is composed of the protein keratin. Given the two facts above, what helps to insulate and protect the body?
Answer: keratin

Problem:OPTIONS:
- koalas
- bacteria
- humans
- dogs
- bears
- cats
- the Sun
- rabbit

Fact 1: Male dogs use pheromones in urine to mark their territory. Fact 2: Pheromones are a sub-category of semiochemicals. Given the two facts above, what uses semiochemicals in urine to mark territory?
****
A: dogs

Fact 1: Cell division is how organisms grow and repair themselves. Fact 2: Organisms grow up to resemble their parents. Given the two facts above, what causes growth in organisms?
OPTIONS:
- cell isolation
- cell division
- Chemical energy
- Plant reproduction
- burning coal
- glucose
- hormones
- cell separation
cell division

Fact 1: The surface of a beach is formed by mechanical weathering. Fact 2: Most beaches are of white coral sand. Given the two facts above, what action produces much of the sand from coral?
OPTIONS:
- reef building
- radioactive decay
- mechanical waves
- glass blowing
- It used to be covered by water
- The area was once underwater
- Mechanical weathering
- By coral exoskeletons

Answer: Mechanical weathering

input with options: Fact 1: Vertebrates are animals that have a backbone. Fact 2: Invertebrates have no vertebrae or backbone. Given the two facts above, what do some animals not have?
OPTIONS:
- nucleus
- fish
- offspring
- vertebrae
- Chlorophyll
- invertebrates
- Energy
- Energy.
output:
vertebrae