Fact 1: An incandescent light bulb converts electricity into light by sending electricity through a filament.  Fact 2: Fiber optics works by carrying light along hair-thin filaments of glass.  Given the two facts above, an incandescent light bulb converts electricity into light by sending electricity through what?
hair-thin fibers of glass
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Fact 1: All animals are heterotrophs.  Fact 2: All fish are heterotrophic.  Given the two facts above, what are all fish?
animals
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Fact 1: Some viruses have an envelope of phospholipids and proteins.  Fact 2: Enveloped viruses make their own membranes.  Given the two facts above, some what make their own membranes?
viruses
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Fact 1: Atape measure is used to measure length.  Fact 2: Length The Base unit for length in the metric system is the meter .  Given the two facts above, what is used to measure the base unit of the metric system which is the meter?

A tape measure
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