When air moves into the lungs, oxygen O is converted into carbon monoxide
O diffuses across the membranes of the alveoli and enters the blood
O diffuses across the membranes of the alveoli and exits the blood
O moves across the membranes of the alveoli by active transport

When air moves into the lungs, oxygen diffuses across the membranes of the alveoli and enters the blood.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: