It's called a conduit.
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Animals that have a backbone are called Vertebrates. (Mammals, for example.)
The movement of a snake is referred to as “Slithering.”
The Stapes is the smallest bone in the human body.
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<span>The biggest difference between photosynthesis and respiration is that photosynthesis only occurs in plants and some bacteria while respiration occurs in all living organisms. They do share one big similarity and that is that the process of photosynthesis is actually the same process only it is completed in reverse.</span>
A double helix is <span>a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule. or in other words a double spiral.</span>