Which is required for both anaerobic respiration and aerobic respiration?

 The correct answer is :  Glucose

Explanation:  Both aerobic and anaerobic respiration begin with glycolysis. Aerobic respiration requires oxygen to proceed, anaerobic respiration does not require oxygen. Anaerobic respiration is used commercially to produce beer, bread, wine, yogurt, and cheese.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.