What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
a) bioenergetic pathwaysb) catabolic pathwaysc) thermodynamic pathwaysd) fermentaiton pathwayse) anabolic pathways

(B) Catabolic pathways.

Explanation:

Catabolic pathway is the breaking down or degradation of complex molecules into simple molecules. Catabolic pathways are exergonic reactions because in the process of degradation, energy stored in these complex molecules is released. These reactions are spontaneous.

Examples of catabolic pathways are glycolysis, citric acid cycle, the breakdown of fat in adipose tissue to fatty acids, etc.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.