Increased atmospheric carbon dioxide will diffuse to the ocean water (since normally, there is lower concentration of dissolved carbon dioxide in the ocean water). The dissolved carbon dioxide takes into the form of carbonic acid thereby increasing acidity of ocean water. More often than not, the acidification of ocean water leads to detrimental results especially in marine organisms that are pH sensitive such as coral reefs and many invertebrates.
They represent the parent's genotypes.
In Nature's rule of law; it is technically both. The only difference between the two would be photosynthesis happens with plants. While cellular respiration happens with living beings.
They have a negative charge.
