input with options: Fact 1: Blowing air into a whistle causes air to vibrate inside the whistle. Fact 2: Sounds are caused by vibrations in the air. Given the two facts above, blowing what into a whistle causes sound?
OPTIONS:
- a lack of noise
- CFCs
- CO 2
- a lack of sound
- wind
- air
- gas
- no noise
output: air

Q: Fact 1: Some parasites kill their host, but most do not. Fact 2: Leeches are external parasites. Given the two facts above, some what will kill their host, while others won't?

OPTIONS:
- barnacles
- producers
- scavengers
- insects
- cigarettes
- fungi
- plants
- leeches

A: leeches

input: OPTIONS:
- The object drinks the fluid
- The fluid is heavier
- It weighs more
- permineralization
- erosion
- The object absorbs its energy
- a hydraulic system
- to move people Now, answer this question: Fact 1: If an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity. Fact 2: Weight is the force of gravity on an object. Given the two facts above, why will an object sink in fluid?
A:
output: It weighs more

Fact 1: Aflower 's purpose is to produce seeds. Fact 2: Grain is the seed portion of the plants. Given the two facts above, what produces grain?

OPTIONS:
- flowers
- leaves
- food
- sugar
- ducks
- plants
- honeybees
- mice

Answer: flowers

Problem: OPTIONS:
- microscopic
- infected
- huge
- storing water
- giant
- small
- Absorb light
- bioaerosols
Q: Fact 1: Zooplankton are tiny animals that feed on phytoplankton. Fact 2: Microscopic animals are called zooplankton. Given the two facts above, what are zooplankton?
Answer: microscopic

Fact 1: Female gametophytes produce eggs inside the ovaries of flowers. Fact 2: Unlike the unisexual gametophytes of a moss, a fern gametophyte is bisexual. Given the two facts above, what can produce eggs inside ovaries of flowers?

OPTIONS:
- peachleaf willow
- Most plants
- animals
- female ferns
- pollen
- insects
- honeybees
- Plant reproduction

Answer:
female ferns