input with options: Fact 1: Population density is the average number of individuals per unit of area or volume. Fact 2: Density is the population divided by the area. Given the two facts above, what is the average number of individuals per unit of area or volume?
OPTIONS:
- population divided by class
- population divided by area
- solid, liquid, gas
- biological diversity
- competing for resources
- population divided by income
- population divided by wealth
- Something that makes plants green
output: population divided by area

Q: Fact 1: Soil is formed by weathering. Fact 2: Most soil is made of weathered rocks. Given the two facts above, where does soil come from?

OPTIONS:
- fields
- magma
- earth
- rocks
- volcanoes
- crust
- down
- water

A: rocks

input: OPTIONS:
- genes
- RNA
- seeds
- energy
- ice
- bees
- cookies
- rice Now, answer this question: Fact 1: Plant reproduction requires pollination. Fact 2: Bees are necessary for pollination. Given the two facts above, plant reproduction requires what?
A:
output: bees

Fact 1: Heating a liquid can be used to identify that liquid 's boiling point. Fact 2: Fire has intense heat. Given the two facts above, what can be used to identify a liquid's boiling point?

OPTIONS:
- Acids
- warmth
- sodium
- Urea
- sugar
- SO2
- fire
- energy

Answer: fire

Problem: OPTIONS:
- chemicals
- glucose
- lipids
- Energy
- complex
- oxygen
- matter
- an ion
Q: Fact 1: Lipids may consist of fatty acids alone, or they may contain other molecules as well. Fact 2: All biological membranes contain lipids as the major constituent. Given the two facts above, what is the major thing that biological membranes consist of?
Answer: lipids

Fact 1: Some flowers become fruits. Fact 2: Ferns have no flowers, fruits or seeds. Given the two facts above, what do some plants have none of?

OPTIONS:
- eukyarotes
- flowers
- roots
- leaves
- stems
- haploid
- Pesticides
- A virus

Answer:
flowers