Truly modern molecular biology emerged with the uncovering of the structure of DNA in the 1960s and concurrent advances in biochemistry and genetics. Molecular biology is one of three primary molecular-scale biological sciences, the others being biochemistry and genetics.
1 Students should know the parts and functions of the circulatory and respiratory systems and how they work together for respiration. 2  Students should also understand what homeostasis is and that all living things must be able to maintain homeostasis.
air flow out of the lungs. Explain how the respiratory and circulatory systems work together to distribute oxygen and remove carbon dioxide from the cells of the body. Respiratory is the exchange of gases between the lungs and atmosphere. Circulatory is the transport of gases throughout the entire body. Tidal volume.