Each lung is fed oxygen by a separate bronchus.

Which of the following is the definition of ventilation as it relates to the respiratory system?

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.

20. identify the main term from the following statement: gastrostomy with vagotomy