Problem:OPTIONS:
- complex
- animals
- cows
- insects
- goats
- protist
- bacteria
- sweat glands

Fact 1: Most invertebrates have a nervous system. Fact 2: Insects are the most common invertebrates. Given the two facts above, what do most types of have nervous systems?
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A: insects

Problem:OPTIONS:
- Grow faster
- wither
- it needs them
- adding heat
- growth
- reproduce
- Grow slower
- Stop growing

Fact 1: Agreenhouse is used to protect plants by keeping them warm. Fact 2: When it's warm outside, both plants and pests grow faster. Given the two facts above, what does a greenhouse make plants do?
****
A: Grow faster

Problem:OPTIONS:
- noble gases
- air particles
- glass
- focusing a lens
- rays or beams
- photons
- sun's heat
- an electron lens

Fact 1: Amirror is used for reflecting light. Fact 2: Light seems to travel in rays or beams. Given the two facts above, what can a mirror be used to reflect?
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A: rays or beams

Problem:OPTIONS:
- energy
- They burn out
- sunlight
- They glow
- heat energy
- They explode
- uncontrolled
- They turn off

Fact 1: An incandescent light bulb converts electricity into light by sending electricity through a filament. Fact 2: An incandescent material is so hot that it glows, producing light. Given the two facts above, what happens when incandescent bulbs get hot?
****
A:
They glow