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.
The word aerobics is defined as with oxygen. When an individual is performing an aerobic activity their body uses oxygen to produce the energy required to actually perform the exercise. One of the main physiological differences between aerobic and anaerobic exercise is how the metabolic process occurs.