Answer:respiratory system
Explanation:The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide, a cell waste product. The main structures of the human respiratory system are the nasal cavity, the trachea, and lungs
<span>A effect mutation can have on viruses is If a virus mutates then it may change its shape making ti able to bind to the cell and enter into the cell.</span>
Answer:
Conduction
Explanation:
convection- not related, as it is hot air rising and cold air falling, which isn't happening.
Subduction- that has to do with the Earth's plates moving
Radiation- doesn't have to do with heated substances.
<span>The double helix of dna is which level of structure? a.Primary
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