Since the circulatory system has to deliver oxygenated blood and take deoxygenated one for it to be oxygenated again, it cannot do the exchange by itself but depend on the respiratory system foe exchange........im no expert. just trying
Uhh normally they mean that the person is unaffected or a carrier, but you'd have to look at a specific one since some have different keys.
Three major types of RNA<span> are </span>mRNA<span>, or </span>messenger RNA<span>, that serve as temporary copies of the information found in DNA; rRNA, or ribosomal </span>RNA<span>, that serve as structural components of protein-making structures
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What r u talking about? illuminates arent real, there a myth