Through their beaks. They have two tiny holes in their beaks that allow them to breathe. Hope this helps! Please mark Brainliest!
If I'm correct, it would be the microbes.
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.
Protein, starch or natural rubber are polymers synthesized by living things.