Problem:OPTIONS:
- energy
- Energy.
- voltage
- ionization
- nutrients
- light
- heat energy
- kinetic energy

Fact 1: Plasma is formed by electrons separating from atoms in stars. Fact 2: Gas Ionization Losing electrons ionizes the atoms in a gas. Given the two facts above, you cannot have matter in a plasma state without what?
****
A: ionization

Fact 1: Vertebrates are all chordates that have a backbone. Fact 2: Invertebrates are animals who lack a backbone or spinal column. Given the two facts above, what do all vertebrates have that invertebrates don't?
OPTIONS:
- sensory neurons
- fur and fat
- bones and joints
- a jaw bone
- kinetic energy
- Chemical energy
- a spinal column
- a set of gills
a spinal column

Fact 1: Building housing developments usually requires replacing animal habitats. Fact 2: Habitat Hairy-nosed wombats are terrestrial and build burrows. Given the two facts above, when would animal burrows need replacing?
OPTIONS:
- the wearing away of rock
- when the population is safe
- when nothing has changed
- when the animals are happy
- building housing developments
- a hemisphere is tilted away from the sun
- Temperature changing
- after too much water received

Answer: building housing developments

Question: Fact 1: Viruses cannot reproduce by themselves. Fact 2: Viruses are germs that cause people to get sick. Given the two facts above, germs that cause people to get sick cannot reproduce by what?
OPTIONS:
- anemia
- dry conditions
- harm them
- contamination
- burning coal
- Smoking
- heat or cold
- themselves
Answer: themselves

input with options: Fact 1: Mammals can also generate little bursts of heat by shivering. Fact 2: Heat production is increased by shivering and non-shivering thermogenesis . Given the two facts above, what do mammals use for heat?
OPTIONS:
- thermogenesis
- Animal fur
- feet
- Chemical energy
- fur and fat
- layers of fat
- convection
- ice
output: thermogenesis

Problem: OPTIONS:
- slugs
- snails
- home bodies
- manatees
- supersonic
- trains
- humans
- Cars
Q: Fact 1: Migrants typically travel long distances. Fact 2: Manatees are a migrant species. Given the two facts above, what typically travel long distances?
Answer:
manatees