You are presented with the quiz "an incandescent light bulb converts electricity into light by sending electricity through what?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an incandescent light bulb converts electricity into light by sending electricity through a filament" and "fiber optics works by carrying light along hair-thin filaments of glass".   So, what's the best answer to the question?
OPTIONS:
- hair-thin molecules
- hair-thin spokes
- epidermis and dermis
- hydrogen and oxygen
- activation energy
- an electron lens
- hair-thin hairs
- hair-thin fibers of glass
hair-thin fibers of glass
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You are presented with the quiz "What are all fish?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "all animals are heterotrophs" and "all fish are heterotrophic".   So, what's the best answer to the question?
OPTIONS:
- wet
- protected
- sharks
- food
- fins
- animals
- eggs
- good
animals
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You are presented with the quiz "Some what make their own membranes?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "some viruses have an envelope of phospholipids and proteins" and "enveloped viruses make their own membranes".   So, what's the best answer to the question?
OPTIONS:
- fungi
- insects
- viruses
- mammals
- fur seals
- humans
- animals
- sharks
viruses
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You are presented with the quiz "What is used to measure the base unit of the metric system which is the meter?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "atape measure is used to measure length" and "length The Base unit for length in the metric system is the meter ".   So, what's the best answer to the question?
OPTIONS:
- solid, liquid, gas
- A laser
- A measuring cup
- bottom of feet
- A tape measure
- focusing a lens
- Time and energy
- A level

A tape measure
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