Fact 1: Scales are used for protection by scaled animals. Fact 2: Fish scales are also composed of chitin. Given the two facts above, chitin can be used for protection by whom?

OPTIONS:
- Fungi
- People
- Man
- Fish
- trees
- Dogs
- animal
- Birds

Answer: Fish

Fact 1: Blood pressure is highest in arteries and lowest in veins. Fact 2: Veins are vessels that bring blood to the heart. Given the two facts above, vessels that bring blood to the hard have lower blood pressure than?

OPTIONS:
- the skin
- arteries
- archery
- heat or cold
- exercise
- artefact
- artesan
- lungs

Answer: arteries

Fact 1: When the body is hot , sweat is produced to cool the body. Fact 2: Humans use evaporation of water, sweat, to cool their bodies. Given the two facts above, what is used to cool the body?

OPTIONS:
- vaporization
- exercise
- Animal fur
- magnetism
- Solar energy
- dry and hot
- sun
- evaporation

Answer: evaporation

Fact 1: Cells cannot survive without oxygen. Fact 2: Survival is to live, to live means hope. Given the two facts above, cells cannot live without what commonly occuring element found on Earth?

OPTIONS:
- Air
- matter
- Light
- fossil fuel
- oxygen
- carbon
- sunlight
- water

Answer:
oxygen