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.
Aerobics is the term coined by Dr. Kenneth Cooper in 1968 to describe sustained low to moderate cardiovascular exercise. Aerobic activities include jogging, cycling, rowing, swimming and group exercise classes such as step. Aerobic exercise offers a wide variety of benefits to your heart, lungs and muscles. Aerobic exercise affects your muscles in the long term as a result of your workouts and also in the short term while you exercise.