The genus Dahlia is situated in the Asteroideae subfamily of the Asteraceae, in the Coreopsideae tribe. Within that tribe it is the second largest genus, after Coreopsis, and appears as a well defined clade within the Coreopsideae.
Aerobic respiration. Definition. noun. (1) A form of cellular respiration that requires oxygen in order to generate energy. (2) The process of generating energy by the full oxidation of nutrients through Krebs cycle where oxygen is the final electron acceptor.
Some definitions include a link to a page giving more information about the word. acid = any proton donor (H+); low pH, neutralize bases. aerobic = oxygen present. Aerobes are bacteria that require oxygen. agar = polysaccharides used to gel liquids for bacteria media and human foods including ice cream.