Q: Fact 1: Mammals can also generate little bursts of heat by shivering. Fact 2: Heat is produced by muscle action and shivering. Given the two facts above, how can you generate heat? | OPTIONS:
- With your hair
- Electrical energy
- Fully cooking the oysters
- Raise your blood glucose
- With your muscles
- flow of electrons
- Raise your oxygen level
- Movement of an air mass
A: With your muscles

Q: Fact 1: Roundworms reproduce sexually. Fact 2: Roundworm eggs are comparatively large. Given the two facts above, what are used to reproduce? | OPTIONS:
- flagella
- nectar
- ocean
- bacteria
- sound
- eggs
- ferns
- bulbs
A: eggs

Q: Fact 1: The Earth revolving around the Sun causes the seasons to change on its axis. Fact 2: Weather and seasons Seasonal changes and weather affect all plants and animals. Given the two facts above, what affects all plants and animals as the Earth revolves around the sun? | OPTIONS:
- starlight
- cool breezes
- global warming
- electromagnetic energy
- moisture levels
- fossil fuels
- temperature
- weather changes
A: weather changes

Q: Fact 1: Most plants grow roots down into the soil to absorb water and minerals. Fact 2: Plant roots begin to stabilize the soil against erosion. Given the two facts above, what is a positive effect of plant needs for water and minerals from soil? | OPTIONS:
- erosion prevention
- reducing acid rain
- It helps them survive
- agriculture
- nutrient deficiency
- water run-off
- erosion
- Exfoliation
A: erosion prevention