~Hello there! ^_^
Your question: Air is passed from the trachea into the lungs through two large tubes called..?
Your answer: Air is passed from the trachea into the lungs through two large tubes called the bronchi.
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Answer: y = x
Explanation:
Looking at the graph, we can retrieve two coordinates from the range we are given: (0, 0) and (5, 5). Because 1900 is the starting x-coordinate of the graph, we can represent it at 0.
You can find the slope of this equation using this formula:

Your slope is equal to 5/5, or 1.
Because the function's y-intercept is equal to 0, there is no need to add anything to the function.
The correct answer is The shape of a PROTEIN molecule resembles a messy group of coat hangers.
To function, proteins must have the necessary amino acids in a specific sequence and be folded into a specific shape. A sequence is a continuous series. Proteins loop, coil, and crinkle into complicated shapes. The shapes appear more like messy groups of wire coat hangers than stacks of neatly folded dish towels.
This is called Bacterial Transformation.