It’s the last one - it is breathed out
Our genes can be affected by the environment and change the way our traits are displayed, called the phenotype. However, changes in phenotype have an underlying genotypic source. Epigenetics or epigenetic changes are changes in the way traits are expressed as an effect of the environment (i.e. food we ate, chemicals in the body, environmental stresses), without changes in the DNA. Simply put, in epigenetics, some parts of the DNA are turned on or off in response to environmental conditions.
By breaking down the bonds in glucose in the presence of oxygen, energy<span> is produced in order to add a phosphate group to ADP to form </span>ATP<span>. In this way, 38 ATPs are formed. This process is called cellular respiration. ... When this bond is broken, adenosine diphosphate, or ADP, is formed</span>