Q: You are presented with the quiz "What is used to see atoms?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an electron microscope is used for seeing very small objects by making them appear bigger" and "atoms are very small or tiny". So, what's the best answer to the question? | OPTIONS:
- electricity
- molecules
- Electron microscope
- A Greek letter
- Labs
- rays or beams
- mystery
- sense organs
A: Electron microscope

Q: You are presented with the quiz "What kind of animals has a water vascular system with tubed feet?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "echinoderms have a unique water vascular system with tube feet" and "echinoderms are represented by the starfish". So, what's the best answer to the question? | OPTIONS:
- animals
- starfish
- reeds
- insects
- warm-blooded
- sponges
- sea coral
- four limbs
A: starfish

Q: You are presented with the quiz "Dehydrating food is used to make it what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "dehydrating food is used for preserving food" and "to keep cut flowers lasting longer, use a commercial florist preservative such as Floralife". So, what's the best answer to the question? | OPTIONS:
- last longer
- survive
- go bad
- burn up
- get started
- throw out
- Relieve pain
- dormant state
A: last longer

Q: You are presented with the quiz "what increases the rate of metabolism in cells?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "thyroid hormones increase the rate of metabolism in cells throughout the body" and "graves disease is a thyroid gland that overproduces thyroid hormone". So, what's the best answer to the question? | OPTIONS:
- heat energy
- heating liquids
- Smoking
- adding heat
- cigarettes
- smoking cigarettes
- Graves disease
- Dehydration
A: Graves disease