Problem:OPTIONS:
- Tail
- muscle
- feathers
- sugar
- down
- hair
- Fat
- scales

Fact 1: Hair is a fiber that is found only in mammals. Fact 2: Animals can be classified into mammals, reptiles, birds. Given the two facts above, what is a fiber that is not found in reptiles or birds?
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A: hair

Problem:OPTIONS:
- exercise
- Energy.
- fish
- Movement
- Energy
- playing
- children
- whales

Fact 1: Playing is one way mammals and other animals learn how to behave. Fact 2: Sea lions are tactile mammals. Given the two facts above, what do sea lions learn how to behave from?
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A: playing

Problem:OPTIONS:
- more abundant
- by indirect light
- remains of prehistoric life
- it keeps an organism warm
- epidermis and dermis
- Organic compounds
- loose soil
- fruiting structure

Fact 1: Humans have collected and grown mushrooms for food for thousands of years. Fact 2: About mushrooms Mushrooms are the fruiting structure of fungi. Given the two facts above, which part of fungi have humans collected and grown for food for thousands of years?
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A: fruiting structure

Problem:OPTIONS:
- environments
- food and shelter
- animals
- Plants growth
- water conservation
- important habitats
- homogenous
- storing water

Fact 1: Wetlands are extremely important biomes. Fact 2: Biomes are simply environments that have some things in common. Given the two facts above, wetlands are extremely important:?
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A:
environments