Heart sound 2 (choose all correct) is generated by the closing of the atrioventricular valves occurs when the aortic and pulmonary valves backfill with blood marks the beginning of isovolumic relaxation is associated with turbulence during atrial contraction

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present