input with options: Fact 1: Plants that are adapted to very dry environments are called xerophytes. Fact 2: Plants that have adapted by altering their physical structure are called xerophytes . Given the two facts above, what do Xerophytes do to adapt to dry environments?
OPTIONS:
- By wind and rain
- The flowers are pollinated
- photosynthesis.
- Transfers energy
- To conserve energy
- alter their physical structure
- thermal insulators
- hydrate their cells
output: alter their physical structure

Q: Fact 1: Macroevolution occurs over geologic time above the level of the species. Fact 2: Geologic time lines are expressed in geologic eras and periods. Given the two facts above, macroevolution occurs over what, above the level of the species?

OPTIONS:
- atmosphere
- years
- growth
- outer space
- stress
- Joules
- humans
- eras

A: eras

input: OPTIONS:
- personalities
- mutations
- solid, liquid, gas
- building blocks
- gastropod shells
- Veins and arteries.
- hosts
- an organism's body Now, answer this question: Fact 1: Mutations may change the structure of a chromosome or just change a single nucleotide. Fact 2: Nucleotides are the building blocks of DNA . Given the two facts above, mutations may change the structure of the what of DNA?
A:
output: building blocks

Fact 1: Water vapor condensing in clouds causes rain. Fact 2: If it's raining AND barometer is steady, then predict rain. Given the two facts above, how can water vapor be detected?

OPTIONS:
- Thermometer
- radiography
- A computer
- satellites
- Barometer
- Evaporation
- Windmills
- Solar panels

Answer: Barometer

Problem: OPTIONS:
- cell phones
- messengers
- energy
- megaphones
- A Greek letter
- flashlights
- gramophones
- electricity
Q: Fact 1: Telephones are used for communication by two people by transmitting sound. Fact 2: Cell phones are, bottom line, radios with a connection to a telephone company. Given the two facts above, what are used for two people for communication with sound?
Answer: cell phones

Fact 1: Pneumonia may be caused by an infection or injury of the lungs. Fact 2: Infections of the lungs can be caused by bacteria, viruses or fungi. Given the two facts above, pneumonia may be caused by viruses or ?

OPTIONS:
- bacteria
- a hazard
- cold weather
- humidity
- mildew
- PDAs
- injury
- methane

Answer:
injury