<span>The question says,' the purpose of the mucus found within the respiratory system is to .............. The correct option is B. The mucus found in the respiratory system function by trapping foreign particles that enter into the lungs especially thorugh the nose during breathing, thus mucus aid in protecting the lungs.</span>
B because the diploids always line up in the middle on chromosomes
Starvation.
Disease.
Weather.
Lack of mate.
Offspring dying.
Hunting.<span />
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
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