I believe its A because all the other one dont make scene really.
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<u><em>The "Lungs" are pairs of organs within the rib cage.</em></u>
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<u><em>In the "Lungs" the mucus traps dust and pollen</em></u>
The replication of chromosomes by eukaryotes occurs in a relatively short period of time because each chromosome contains multiple replicons. Prokaryotic such as bacteria often contain only one chromosome with one origin at which two replication forks assemble and move in opposite directions.
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go help me on my 3 question please
Wave velocity in common usage refers to speed, although, properly, velocity implies both speed and direction. The velocity of a wave is equal to the product of its wavelength and frequency (number of vibrations per second) and is independent of its intensity.
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