the question isn't complete here so i can't right an answer '_'
Answer from: Quest
The basic building blocks of dna and rna are nucleotides
Answer from: Quest
air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.
Answer from: Quest
d. changes in climate and historical records
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